A QA team testing what engineering already built is the most common quality model — and one of the least effective at scale. It puts a manual, human bottleneck between “code complete” and “shipped,” and it treats quality as a checkpoint rather than a property of the system.
The alternative isn't removing quality checks — it's moving them earlier and automating them so they gate the pipeline itself, not a person's calendar.
In practice, that means prioritizing automated coverage around your actual highest-risk paths — not chasing a coverage percentage for its own sake — and building CI gates that block bad code from merging regardless of deadline pressure. Production monitoring closes the loop, catching what pre-release testing structurally can't.
Done well, this doesn't slow teams down. It's the reason fast-moving engineering teams can move fast at all: they trust what the pipeline has already verified, so they stop manually re-checking each other's work.