One thing I've learned over a long career in software is that a "bad" process that is followed precisely with top to bottom buy-in will always out perform the "

One thing I've learned over a long career in software is that a "bad" process that is followed precisely with top to bottom buy-in will always out perform the "best" process with lots of exceptions and lukewarm buy-in. If you want something like Scrum or agile to work, you must have technical project managers that are independent and, quite frankly, they need to be assholes holding both the tech side and the business side equally accountable.