I have always read and heard that the greatest attribute an NFL quarterback needs, WAY beyond height, arm strength, or anything else, although those are good to have, is the ability to read a defense, process information extremely quickly, and make split second decisions.  (Of course that all takes place while there is violent chaos going on within arm's reach.)  

I don't know if those abilities are tangible or intangible, but those abilities are apparently very hard for NFL scouts to evaluate, and it's why there are so many quarterbacks that look like they are from central casting that are drafted every year that aren't worth a bucket of warm [BLEEP].

Gruden did mention Minshew having attended "14 different colleges" (which I thought was a funny line) and how that experience might have helped him learn new systems.

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