> ...code reviews

> ...PRs relatively small (when possible)

> ...deadlines

Truth is if you are doing the kind of work that fits into code reviews, small PRs and neat deadlines, does any of it matter? You're describing a tech enabled agency, not a startup. Sure customers have alternatives, but in the same sense that we have choices when booking airline tickets: you are describing a development process for a product that is fundamentally fungible, so the main differentiator among producers is costs, not management strategy.