I never heard of this guy before we drafted him, googled some stuff up, it seems he's started a lot of games at tackle. He definitly has the height for tackle. Hopefully he can back up both guard and tackle positions, thats what I was hoping we would get max unger to do, but maybe this kid is a hidden gem. Callahan obviously knows him well. combine vid: http://www.nfl.com/videos?videoId=09000d5d80f338d9