Bill Callahan has only been an O line coach for 40 years... His Offensive Lines are consistently among the best in the NFL. I think it's fair to say he knows what traits a Left Tackle should have. If he believes Latham is the best option to fill the Left Tackle position, Carthon would be foolish to pick a different prospect. Seems to me some on this forum just look for something to complain about. Some serious "Charlie Brown Syndrome" among members.