J.C. Tretter didn’t play at all in 2013 after being drafted in the fourth round. He broke his ankle during the first OTA session and wasn’t activated until early December. However, the Packers have a question mark at center entering the offseason. Starter Evan Dietrich-Smith is an unrestricted free agent. If the Packers don’t re-sign him or add someone else, the job falls to Tretter by default. Obviously, starting a guy who’s essentially a rookie isn’t ideal, but the Packers fared just fine when they were forced to thrust rookie David Bakhtiari into the lineup at left tackle in 2013. He was also a fourth-round pick. Obviously, choosing Tretter in the fourth round was a sign the Packers thought he could be a starter at some point.