Looks better when asked to quickly get his feet around blocks and try to seal defenders inside. However, lacks ideal balance on contact and isn't real heavy handed. Has a tendency to quickly begin to bend at the waist and will routinely fall off blocks.
Lacks range off the snap in the pass game and struggles to reach explosive linemen firing off his frame. Plays stiff through his lower half and just doesn't have the type of athleticism to hold up inside in pass protection at the next level.
Impression: Struggled at times in both the run and pass game at the college level, which doesn't bode well for his chances in the NFL."
Positive: Strong, small-area blocker always looking for someone to hit. Stays square, keeps the opponent in front of him, and jolts defenders with good hand punch. Attacks assignments, turns opponents off the line, and keeps his feet moving.
Negative: Must improve his blocking balance. Struggles to hit moving targets on the second level.
Analysis: Harper displayed improvement as a senior and has the body type to make it as a backup guard at the next level."