Because he's just another in a long line of QBs who have come through that goofy OK State system and amounted to less than nothing in the NFL. That's why.
See: Weeden, Brandon. Robinson, Zac.
McCarron has, so far, proven nothing; McCown is a journeyman at best and Bridgewater might never be the same after his knee injury.
How about, none of them and just trade up for Rosen or Darnold and let them start Day 1?
If there's a guy that Beane and McDermott feel is a true, franchise QB, then GO GET HIM. Stop this crap of hoping that scrub QBs from the mid rounds will turn into the next Brady or Russell Wilson.
It is wrong if the target is Josh Allen, who's nothing more than another EJ Manuel - tall, lanky, accuracy issues, folds like a cheap suit against legitimate Power 5 competition.
That game would have been a loss if Jones and Sanu were still in the game. So, unless Diggs and Thielen are out of the game, Minnesota is a guaranteed loss.