Blind hog finds an acorn. 2/3rds of the other players drafted in the rounds with them are selling insurance. Talent can be found throughout the draft, however, the chances of getting lucky enough to come across it diminishes continuously as the picks grow later.

By the way, Kelce was taken with the 63rd overall pick of the draft, the first pick of the 3rd round. There were only 30 2nd round picks in 2013. That really doesn't qualify as a midround pick.