This is very true.

Unfortunately most product managers SUCK at designing or making software.

Agile tries to fix this be supporting frequent iteration.

Unfortunately most programmers SUCK at writing good code.

TDD tries to fix this by forcing the consideration of end results (testing) at the beginning. It forces programmers and product teams to actually think and work. Make clear design decisions earlier on, but not to the point of waterfall.

It’s just a giant cesspool of failure due to human laziness that usually falls on the shoulders of QA.

Bottom line, making good software is hard. It takes time. But the market won’t support slow development. The business and sales teams remind me of Veruca Salt in Willy Wonka.