Case Keenum is having the ultimate breakout, but we shouldn’t be surprised

Case Keenum is having the ultimate breakout, but we shouldn’t be surprised
Undrafted as the most prolific passer in NCAA history. Undervalued as a backup. Still underestimated as the leader of the NFC’s No. 2 seed. Keenum’s breakout season seemed to come out of nowhere — except that it didn’t.

Source: http://www.espn.com/nfl/story/_/id/22013548/how-minnesota-vikings-quarterback-case-keenum-became-improbable-face-faceless-contender