Introduction
When building a sales development team, managers face one question immediately: do you hire a BDR, an SDR, or both?
The confusion is real. Many companies use these titles interchangeably. Job boards list them with overlapping responsibilities. Even major platforms like Salesforce and HubSpot define them differently.
However, getting this structure right matters enormously. The wrong hire at the wrong stage can stall your pipeline growth for months. This guide cuts through the noise and gives sales managers a clear, actionable framework for implementing both roles effectively.
BDR vs SDR: The Core Definitions
Let’s establish the clearest working definitions before anything else.
SDR — Sales Development Representative focuses on qualifying inbound leads. Marketing generates interest through content, ads, or email campaigns. The SDR picks up those leads and determines whether they’re worth passing to an Account Executive (AE). Their work is largely reactive — they respond to demand that already exists.
BDR — Business Development Representative focuses on generating outbound opportunities. They build prospect lists, conduct cold outreach, and create pipeline from scratch. Their work is proactive — they go after prospects who haven’t raised their hand yet.
In simple terms: SDRs work inbound, BDRs work outbound. That’s the clearest line between the two roles.
That said, industry consensus isn’t perfect. Some companies flip these definitions entirely. Therefore, when hiring or structuring your team, don’t rely on the title alone — define the responsibilities yourself.
Where Each Role Sits in the Sales Funnel
Understanding funnel position helps managers allocate resources correctly.
SDRs operate at the very top of the funnel. They receive Marketing Qualified Leads (MQLs) and convert them into Sales Qualified Leads (SQLs). Their job ends when they hand a qualified prospect to an AE. They don’t close deals — they open doors.
BDRs often operate deeper in the funnel. Beyond initial outreach, they may stay involved in relationship-building with high-value accounts. They work closely with AEs to understand key decision-makers and coordinate strategy across departments.
This funnel difference directly impacts how you manage, compensate, and measure each role. A manager who treats both roles identically will misalign incentives and frustrate their team.
For a deeper look at how these roles connect to your overall revenue engine, read this guide on how to build a scalable sales pipeline for predictable growth.
Key Differences: BDR vs SDR Side by Side
Here’s a clear breakdown managers can use during role planning and hiring:
Lead Source: SDRs handle inbound leads from marketing. BDRs generate outbound leads through prospecting.
Primary Activity: SDRs qualify and route existing demand. BDRs create net-new pipeline through cold outreach.
Sales Funnel Position: SDRs stay at the top of the funnel. BDRs may engage mid-funnel on strategic accounts.
Who They Report To: SDRs often report to marketing. BDRs typically report to sales.
Skills Required: SDRs need speed, qualification discipline, and communication skills. BDRs need research, persistence, and strategic relationship-building.
Career Path: SDRs commonly move into Account Manager roles. BDRs frequently transition to Account Executive positions.
KPIs: SDRs are measured on volume — calls made, MQLs qualified, discovery calls held, and response times. BDRs are measured on quality — SQL-to-close rate, average deal size, and sales cycle length.
How to Decide Which Role You Need First
This is the most important decision a sales manager makes when building a development team.
Start with an SDR if: Your marketing team is already generating a solid volume of inbound leads. You have more leads coming in than your AEs can properly handle. Your sales cycle is shorter and more transactional. You need faster pipeline velocity, not bigger deals.
Start with a BDR if: You’re an early-stage company with limited inbound volume. Your target accounts are enterprise-level and require proactive outreach. You need to enter new markets or verticals where your brand has little awareness. Your AEs spend too much time prospecting instead of closing.
Hire both if: You’ve hit a growth stage where inbound alone doesn’t scale. You have enough AE capacity to absorb meetings from both directions. Your ICP spans both SMB (better suited for SDR motion) and enterprise (better suited for BDR motion).
In addition, assess your current AE workload. If AEs handle the full sales cycle — prospecting, qualifying, and closing — hiring either role immediately frees them to focus on revenue-generating activities.
To understand the full scope of what a BDR role involves before hiring, review this breakdown of BDR in business and what responsibilities come with it.
Setting Up SDRs for Success: A Manager’s Checklist
Once you’ve made the hiring decision, setup matters as much as recruiting. A well-hired SDR will fail without the right structure around them.
Build the playbook before day one. Don’t onboard an SDR without a documented qualification process. Define what makes a lead “qualified” at your company. Establish clear BANT (Budget, Authority, Need, Timeline) criteria. Give them email templates, objection handling scripts, and a follow-up cadence they can execute immediately.
Set clear activity metrics. SDRs need daily and weekly activity targets. Reasonable benchmarks to start with include 40–60 outreach touchpoints per day, a response time of under two hours to inbound leads, and 8–10 qualified discovery calls per week.
Create a feedback loop with marketing. SDRs are the first human touchpoint for marketing leads. They’ll quickly identify which lead sources convert well and which ones waste time. Build a weekly feedback process so marketing adjusts targeting based on SDR insights.
Review calls regularly. Listen to discovery call recordings every week. Identify where SDRs are losing momentum and coach specifically on those moments. Generic sales training rarely moves the needle — targeted call coaching does.
Setting Up BDRs for Success: A Manager’s Checklist
BDRs require a different support structure than SDRs. Their work is more strategic and longer-cycle. Therefore, the setup process must reflect that.
Define the ICP before they make a single call. A BDR without a sharp Ideal Customer Profile wastes time chasing prospects who will never convert. Spend real time defining target company size, industry, tech stack, geography, and the specific decision-maker persona before outreach begins.
Give them the right prospecting tools. BDRs need access to quality data and outreach infrastructure. This includes a CRM, a sales engagement platform for sequencing, LinkedIn Sales Navigator for account research, and a phone dialer for cold calling. Without these tools, they’ll spend more time on manual research than actual prospecting.
To explore the best options for your team, review this list of best outbound sales tools every SDR team should use — most apply directly to BDRs as well.
Set quality-focused KPIs. Don’t measure BDRs purely on activity volume. Instead, track SQL-to-opportunity conversion rate, average deal size from BDR-sourced pipeline, and the time from first contact to qualified meeting. Volume matters, but quality signals long-term success.
Involve them in account strategy. Unlike SDRs, BDRs benefit from deeper involvement with AEs on target accounts. Run joint account planning sessions. Give BDRs context on why certain companies matter strategically. This makes their outreach sharper and more relevant.
Compensation: How to Pay Each Role
Compensation structure directly influences behavior. Getting this wrong creates misalignment between what you pay for and what you actually need.
SDR Compensation: SDRs typically earn a base salary plus a bonus tied to qualified meetings set or SQLs generated. Variable pay should be 20–30% of total compensation. Incentivize speed — reward fast response times to inbound leads. Avoid paying SDRs on closed revenue, as they have no control over the close.
BDR Compensation: BDRs also earn base plus variable, but the variable component may be slightly higher — 25–35% — reflecting the more independent nature of their work. Tie bonuses to SQL quality metrics like SQL-to-opportunity conversion rate, not just volume. Consider accelerators for BDRs who consistently exceed pipeline quality targets.
For both roles: Pay for outcomes, not activities. Avoid compensating purely on call volume or emails sent. The goal is a qualified pipeline, and your comp plan should reflect that clearly.
OKR Examples for Sales Managers
OKRs give you a structured way to hold each role accountable without micromanaging activity.
SDR OKR Example: Objective: Increase conversion of inbound MQLs to SQLs. Key Results: Complete 80 discovery calls per month (up from 50). Reduce average MQL response time from 32 hours to under 4 hours. Achieve BANT qualification on 100 leads per quarter.
BDR OKR Example: Objective: Improve quality of outbound-sourced pipeline. Key Results: Increase SQL-to-closed-won rate from 20% to 30%. Reduce average sales cycle from 40 days to 28 days. Increase qualified lead-to-quote conversion from 34% to 55%.
Review these OKRs monthly. Adjust based on where the team is hitting or missing. Moreover, share OKR progress in weekly standups so reps understand exactly where they stand.
Common Implementation Mistakes to Avoid
Even experienced managers make these errors when rolling out SDR and BDR teams.
Mistake 1: Treating both roles identically. SDRs and BDRs need different playbooks, different KPIs, and different management rhythms. Managing them the same way creates confusion and underperformance.
Mistake 2: Hiring before the playbook exists. Reps without documented processes invent their own — and not always in ways that serve the company. Build the playbook first, hire second.
Mistake 3: Measuring BDRs on volume. BDRs generate fewer but higher-quality touches than SDRs. Holding them to SDR-level activity metrics will push them toward low-quality spray-and-pray outreach.
Mistake 4: No feedback loop between roles and marketing. SDR and BDR insights are gold for marketing teams. If that data doesn’t flow back upstream, both functions operate in silos and overall pipeline quality suffers.
For a comprehensive view of how outbound roles connect to your B2B sales development strategy, that resource breaks down the full picture clearly.
Conclusion
BDR vs SDR isn’t just a terminology debate — it’s a structural decision that shapes your entire pipeline. Define each role clearly, build the playbook before you hire, and align compensation to the outcomes that matter. Get the structure right and your sales development function will scale consistently.
Frequently Asking Questions
Partly, yes. Many companies use the titles interchangeably. However, the most widely accepted distinction is that SDRs handle inbound leads and BDRs handle outbound prospecting. Define responsibilities internally and don’t rely on titles alone
Most startups benefit from hiring a BDR first. Inbound volume is typically low early on, so proactive outbound pipeline creation is more valuable at that stage.
Yes — many early-stage companies run a hybrid role. However, as you scale beyond $5M ARR, splitting the functions improves focus and performance significantly.
Expect 60–90 days for an SDR to reach full productivity. BDRs often take 90–120 days due to longer prospecting cycles and the complexity of outbound relationship-building.
SDRs frequently sit within marketing since they work closely with MQLs. However, the growing trend moves them into sales. Either works — what matters is that the handoff process between marketing and the SDR is clearly defined.