re: Great QBs whose career suffered from awful coaching

The first QB who comes to mind for me is Randall Cunningham. He had Buddy Ryan (who blatantly didn't give a shite about offense) and Rich Kotite as his head coaches for the first ten years of his career. If he had been placed in a better situation with a coach that would have nurtured his skills better, he would have been a first ballot HOF QB.