STRENGTHS - Highly competitive, Mulroe stays after block from snap to whistle. With quick feet and good flexibility, he is consistently able to set up to pass block fast with good base/leverage. When he "gets a good fit" in pass pro, he is usually able to tie up and keep DT pinned on the LOS. Even when he gets jolted backwards initially, he does a good job of re-setting and anchoring. His ability to pass block with good base helps him to slide well side to side to adjust to quick pass rush moves and to switch off well with other linemen vs DL stunts/games. A good positional in-line run blocker, Mulroe is effective sealing man out of the play when he makes contact with DL quickly, stays over feet and keeps feet moving until the whistle.
WEAKNESSES - Not a big guard, Mulroe is not as effective in pass protection when he does not get his hands on DT first and can be jolted upright and backwards. Although he showed a good ability to re-set and anchor at Northwestern, he will need to add weight and improve strength to do that in the NFL. At times he stops feet after setting up in pass pro waiting for pass rusher & this allows very quick pass rushers to beat him with a "slap and arm-over" move too often. Not a fire-off the ball run blocker, Mulroe has not shown the strength to get movement on straight ahead or in-line run blocks and is much more of a positional/seal blocker. While he can get to the second level quickly when unblocked, he struggles to adjust to block a moving target out in space.
SUMMARY - Mulroe is a guard that caught my attention when I was grading some of the better DT's in the Big Ten during the 2011 season. Although he is not a premier guard prospect, he is smart, competitive, technically sound and usually finds a way to keep his man from making/impacting the play. In order to be productive at the NFL level, Mulroe will need to be more consistent "getting a good fit" in pass pro so that he can play strong at the POA versus the bigger, stronger DT's at that level and will need to improve getting movement on side/angle run blocks. Overall, Mulroe is not likely to be drafted as highly as I have him rated, if he is drafted at all, but I am confident in my evaluation. He has what it takes to be a very good backup guard and center with the potential to become a solid starter if he improves his playing strength and consistent uses of hands.