STRENGTHS: Thick upper and lower body with good length. Flexible lower body with consistent knee-bend. Quick initial movements off the snap with adequate lateral shuffle. Generates good power from his hips. Anchors and re-setting to stay stout at the point of attack. Meat cleavers for hands with a quick, heavy punch to initiate contact and toss bodies. Can shift his weight to combo block with smooth hip action. Goes in motion, pulling to make plays away from the line of scrimmage. Mean streak -- looks to destroy his target. Four-year starter (46 career starts) with experience at both guard positions.
WEAKNESSES: Overextends himself and will fall off-balance, lunge and rely on his upper body to get the job done. Quick off the snap, but slows and lacks the foot agility to recover. Allows rushers to cross his face and needs to improve his reaction quickness. Inconsistent rolling his hips at contact to drive his man instead of stopping his feet at ignition. Has some bad habits with his technique and anticipation, not always positioning his body with the correct angle. Slow eyes and can be sluggish adjusting to multiple pressures. Game appears too fast for him sometimes.
--Derek Stephens, Dane Brugler
Started as a true freshman and 46 total games in his four seasons, alternating between left and right guard as a senior.
Physical presence in the ground game, a real people mover and power player with aggressive hands and the physical demeanor to manhandle defenders. He generates power from his lower body and is at his best when he rolls his hips to bury his targets, but can be overeager at times and fall off blocks. Has experience at both guard spots and might not be a fit for every NFL offense, but he has starting potential in a power-based scheme.
07/24/2014 - Top Louisville prospects for the 2015 NFL Draft: 4. OG John Miller...A 34-game starter in his Louisville career, Miller earned second-team All-AAC honors starting all thirteen games at left guard last year as the Cardinals offense put up 35.2 points, and 460.8 yards per contest. While he may lack elite athleticism, Miller demonstrates intelligence, sound technique and toughness in the trenches with enough quickness in a short area to be a reliable pass-protector when asked to slide and mirror interior rushers, and his initial burst off the snap enables him to get to the 2nd level and target efficiently. From a technical standpoint, Miller exhibits good bend in his lower half and is rarely overwhelmed as he keeps his feet moving, resets without wasted motion, and establishes good extension to keep defenders out of his frame. Another mid-round type of prospect who's durability and consistency could make him a terrific pro. - Derek Stephens, NFLDraftScout.com