Endava engineers Joe Dunleavy and Mike Krolnik draw a hard line: work before Codex, and work after Codex. The claim is not incremental improvement. It is a fundamental shift in time velocity for small teams delivering large-scope projects.
The specific argument here is about compression. Not automation replacing developers, but the same headcount shipping more, faster. Endava is a global technology services firm, which means this is not a startup edge case. It is an enterprise-scale signal about how professional services delivery is being restructured around AI coding tools.
What makes this worth watching in full is not the conclusion, which you already have. It is the before-and-after framing from practitioners inside a real delivery environment, not a demo. If you work in software consulting, team sizing, or technical project scoping, the specifics of how Codex changed their workflow estimates are the data points you need.
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