Strengths: Rare size with great lower body strength, long arms and solid bulk ... Tenacious run blocker and is a finisher ... Consistent motor ... Very smart ... Solid athlete and can get to the second level ... Has the power to anchor against larger nose tackles ... Is the leader and anchor you want for your line ... Makes correct line calls and is a solid communicator ... Gets out of stance quickly ... Uses hands well; can lock on ... Nice awareness in pass protection ... Can play guard.
Weaknesses: Gets too high at times ... Footwork could be improved and he is sluggish here from time to time ... Agility is a bit of a concern ... Cut block technique needs to be refined.
Summary: An outstanding center prospect, and most of his weaknesses are correctable...Will get criticized for not being a great athlete, but what center in the NFL is? ... Best center prospect in a very long time and will carry a higher grade than Nick Mangold ... Lack of value and demand at the center position could drop him to the second round, but he should carry a first-round grade.
Player Comparison: Matt Birk. Yes, Mack is good enough to be compared to Birk, and is going to enter the NFL as possibly the biggest center in football. His intelligence and leadership is very reminiscent of Birk's, and he should be a Week 1 starter at either center or guard.