---
id: "action-narrow-icp"
type: "action-item"
source_timestamps: ["§ What the Best Sellers Did Differently", "§ They Pursue Markets That Are Too Broad"]
tags: ["positioning", "icp", "go-to-market"]
related: ["framework-sprint", "concept-agency-anti-pattern", "contrarian-niche-ambition"]
action: "Define a highly narrow ICP (one buyer, one problem, one motion) to build repeatability."
outcome: "Avoids generic messaging, prevents the 'agency anti-pattern', and earns the right to expand."
speakers: ["Dave Rubinstein", "Vincent Onyemah"]
sources: ["commercial"]
sourceVaultSlug: "hbr-seg-commercial"
originDay: 5
articleStem: "hbr-ext-21-founders-new-sales-playbook"
sourceUrl: "https://hbr.org/2026/06/startup-founders-need-a-new-sales-playbook"
sourceTitle: "Startup Founders Need a New Sales Playbook"
---
# Constrain the Ideal Customer Profile (ICP)

**Action:** Stop trying to sell to everyone. Define an Ideal Customer Profile that is narrow enough to be **immediately actionable**: **one buyer type, one specific problem, and one repeatable sales motion**. Use this narrow wedge to establish repeatability *before* attempting to expand market scope.

**Why it works:** It avoids generic messaging and prevents [[concept-agency-anti-pattern]], while earning the right to expand later. This is the **Niche** element of [[framework-sprint]] and the practical expression of [[contrarian-niche-ambition]].

**Outcome:** Avoids generic messaging, prevents the 'agency anti-pattern', and earns the right to expand.