Correct. Any time you need a completely separate team to handle any aspect of the lifecycle of the product you're introducing delays and miscommunication. Besid

Correct. Any time you need a completely separate team to handle any aspect of the lifecycle of the product you're introducing delays and miscommunication. Besides, a separate team to do a part of the job scales badly: it needs to grow at least linearly with the number of developers, sometimes superlinearly. You should absolutely have a small QA team, but their job shouldn't be doing the QA -- it should be helping others do their own QA.