[ngoede]

Yeah the way to write better code is to write better code. I happen to find TDD a useful tool in that but doing things badly is still possible.

Someone mentioned DI not getting rid of coupling and I agree. DI is a tool you might use but the way to get rid of coupling is not one simple thing but a process of a bunch of different tools and techniques. You can't just slavishly fallow some process and expect it to fix all your issues. You have to think and do work yourself to fix it.