Ervin Baldwin will likely have to move to linebacker in the NFL as he is 6′2″, 258 pounds which might be a tad small to have to deal with offensive linemen at the NFL level.  Baldwin played in 25 games (all starts) at Michigan State and he made 93 tackles, 25 tackles for a loss and he had 12.5 sacks.  It will likely take some time for Baldwin to switch to OLB so the Bears will need to have patience with him.