Recruiting is more than just picking a prospect the coaches like and selling him on their program. An important aspect is talent evaluation and finding the right players to fit a system.
Evaluating prospects along the offensive line can be very difficult, and the Michigan coaching staff, so far, has done an excellent job finding recruits they believe fit what they're looking for.
The 2012 class is extremely important for the future success at the position and for building depth. Michigan loses two offensive linemen after this current season and four after next season.