Product Management S-Curve

The product management S-curve is Singhal’s phase model for when product management becomes useful: founders own pre-product-market-fit experimentation, PMs add process after pull emerges, product leaders scale and expand during hypergrowth, and late-stage teams restart zero-to-one work against innovator’s dilemma.

Key points

• Before product-market fit, Singhal argues product management usually does not make sense because the founder is still experimenting rapidly to discover real customer pull ^[src-052].
• After product-market fit, experimentation must give way to resilience, consistency, predictability, and coordination across teams, which is where product management historically enters ^[src-052].
• During hypergrowth, product management and chief product officers help scale the existing hit product and expand into adjacent products while the founder works on fundraising, go-to-market, and company scaling ^[src-052].
• In late-stage big tech, product leadership must combat innovator’s dilemma by creating new zero-to-one products despite the gravitational pull of existing large businesses ^[src-052].
• The model explains why one product-management job title can describe very different work depending on company stage ^[src-052].

Related entities

• Nikhyl Singhal

Related concepts

• AI-Era Product Management
• Product Builder Role
• Outcome-Obsessed Product Management
• Working Backwards
• Experiment Iteration Loop

Source references

• ^[src-052] Stanford Online – “Stanford CS153 Frontier Systems | Nikhyl Singhal from Skip on Product Management in the AI Era” (2026-05-07)