In that list, there are three #1 overall picks and a #11 pick (Roethlisberger.) Yes, there are QBs taken in the first round who are busts, but Arians had some great talent to work with. When he was in Arizona, he never developed a successor to Palmer. You'd think a "QB Whisperer" would have found a mid-to-late round talent and guided them to being an effective starter. Instead, when Palmer was out, they really struggled.