Tony Ding/Associated Press
The biggest riser of the week might have been Graham Glasgow, the center from Michigan. He has always been on the draft media's radar, but he dominated practices to the point where many now consider him as a potential draft choice at both center and guard. He was also picked up for the Senior Bowl, the premier senior all-star game, next week.
Glasgow's pulling and movement skills may have been hidden at center, whereas guards are typically the offensive linemen who are asked to pull on power plays. His newfound ability to play any of the interior line spots is a giant positive for him, as NFL teams typically only keep three backup offensive linemen for five starters on their roster.
There are two giant offensive tackles that everyone needs to have on their watch list as possible starting bookends at the next level. The first is Keith Lumpkin of Rutgers, who measured in at over 6'7" and 327 pounds, and the second is Stephane Nembot, who almost hit 6'7" and 318 pounds.
Lumpkin was best known for his tape against Randy Gregory of Nebraska last season. Before Gregory had a misstep on a drug test at the combine, he was considered a top-five pick as a pass-rusher, and Lumpkin closed him out for their entire matchup.
Nembot's potential as tackle has been known, as Tony Pauline of Draft Insider reported last year that he was considering declaring early for the 2015 draft class.
Two other offensive linemen to keep an eye on are Brandon Shell of South Carolina and Jake Brendel of UCLA. Shell was the "other" offensive lineman for the Gamecocks in 2014, as A.J. Cann, a guard, was the top prospect. South Carolina struggled all of 2015, spending most of it without its Week 1 head coach Steve Spurrier. Shell has been a riser at nearly 6'6" and 325 pounds. It's not out of the question that someone falls in love with this tackle.
Brendel is the other name to jot down. He's an undersized lineman from UCLA, but at 6'4" he can add some weight to his sub-300-pound frame. Either way, he has the movement skills you want from a zone center.