Any quarterback taken after the first couple of rounds is going to face enormously long odds.
They last through one, two, three rounds because they have things that need to improve, and their positive traits get hidden by areas of inconsistency and spots needing improvement. So, you aren’t knowingly drafting a franchise quarterback in these rounds. You’re taking chances on players who you think might have a shot and are worth a look.
The Saints believe Ian Book has a shot. They like the things he can do and are willing to explore if they can develop him and accentuate the things he can do.
Can Book make it in the NFL? We watched a bunch of his games to try and answer this question and figure out his starting point.