[mrkeen]

I'd prefer what you describe, because I would still be allowed to fix it (change it to manual DI).

I usually write manual DI when I want to iterate on the system and make sure each part does what it's supposed to.

Then once it works I convert it to Joe Armstrong's gorilla-holding-the-banana-and-the-whole-jungle (framework DI) so it gets past code review, and I hope to never touch it again.