Very well said.
It amazes me the people who say with such certainty that a college QB prospect will be some elite franchise guy.
NFL teams spend $100's of thousands of dollars and countless man hours (between multiple professional scouts, GMs, front office execs etc who all do this for a living) evaluating these players, and yet every year we see so many of these teams miss and the QBs bust.
Nobody knows anything for certain about these QBs. If they did, they'd be very rich, like you said.