But other concerns with Mut 23 coins his less-than-ideal size are his ability as a blocker of passes as well as his capability to run through arm tackles as he did at Stanford. If McCaffrey isn't able to do either, he could become a player in a change-of-pace role, which is difficult to justify spending a selection in the first round on. McCaffrey's average career which is 6.2 yards per rush is...