early. Particularly high-drafted QBs.

I'd say the odds of the second reality are high enough to often side against the risk of a career-ending injury.

Zach still has quite a bit of physical growing to do. He also has a lot of leadership skills he can learn w a final year in college that he almost surely won't get in his first few seasons in the NFL. And that'd be true even if he were lucky enough to land in a very good Pro situation.