Sales development

The model for pipeline creation. Free to read.

Tenbound is the Pipeline Architecture Institute. We publish the research, frameworks, and benchmarks that sales development teams run on, and we give them away. If you came here from an older link, the archive is being rebuilt. The pieces that matter are below.
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01 / Start here

The reads people come for.

No form, no fee. If a link brought you here from somewhere else, one of these is probably what you were after.

The definitive guide to sales development Sales development creates qualified pipeline before a closing motion. In 2026 the function combines account selection, signal interpretation, research, messaging, conversation, qualification, and an auditable handoff across humans and AI. The three Cs of sales development leadership Strong SDR leadership is not charisma at scale. It is a system: clarity tells the team what good work looks like, coaching improves the behaviors that create it, and cadence makes both repeatable. The 20 largest SDR teams in the USA Public sources do not provide a complete, consistently defined, current company-level count of U.S. SDR teams. A defensible ranking requires a frozen definition, dated company evidence, duplicate-role controls, confidence labels, and a reproducible review process. Until that dataset exists, Tenbound will not publish an unsupported top 20. SDR manager training SDR manager training should teach managers to design the work, coach observable behavior, protect pipeline quality, supervise AI and automation, and build a credible career path—not merely inspect activity totals. AI prompts for salespeople and SDRs Good sales prompts assign a role, supply verified prospect data, state one task, and demand a checkable format. This collection covers 23 prompts across the SDR job: account research, ICP scoring, cold email, call prep, objections, follow-up, and pipeline review. Automate the drafting and the analysis. Never automate the verification or the relationship. The Buckets cold-calling methodology The Buckets methodology sorts every account and phone number into a bucket based on what actually happened on the last dial: uncontacted, working, priority, or meeting scheduled. Because every outcome updates the list, connect rates climb with each pass. The phone becomes a sorting machine, not a persuasion contest.

More in the playbooks, the metrics library, and the research library.

02 / The model

Six pillars, one ladder.

Pipeline Architecture is the discipline of designing pipeline creation as a system rather than a headcount plan. Six pillars describe the parts. The ladder describes how far a team has automated them.

Market Who is worth a conversation, and who is not.
Signal What tells you an account is in motion.
Message What earns a reply from that account.
Motion How the work gets sequenced and run.
Mastery How reps and managers get good at it.
Measurement Which numbers say it is working.
Manual 01 People do the work, tools store the record.
Assisted 02 Tools draft and suggest, people decide.
Orchestrated 03 The system runs the motion, people supervise.
Autonomous 04 The system runs and adapts, people set policy.

The full framework is the Tenbound Pipeline Architecture Standard, and the maturity model places a team on the ladder.

The operating record

A decade of CIENCE sales development engagements.

Replacing a fully automated motion with personalized outreach booked three times the meetings in her second month. Video messages returned replies at roughly 25 percent, against 1 percent for plain email.

Lauren Wadsworth Head of Global Sales Development, Segment The Sales Development Podcast, Tenbound interview archive

Calls into his priority bucket (people who answered before) connect at 20 to 30 percent, against about 5 percent on cold dials. Around 80 percent of reachable contacts connect within the first 3 to 5 attempts, so lists refresh on that cadence.

Ryan Reisert Outbound practitioner, the Buckets methodology Tenbound interview archive

Findings are as shared by the speakers in their interviews in the Tenbound archive.

03 / Two ways to use it

Build it yourself, or have it run for you.

Everything above is free and stays free. The one ask is attribution: cite Tenbound and link the source.

If you would rather not build it, the CIENCE team runs this model as a managed service, and graph8 is the platform underneath it. The discovery call is thirty minutes about your pipeline, not a pitch for the research.

Next step

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