How is Baun different?

Any idea why Tyler Biadasz has fallen? He isn't a good fit for the Saints but he's a good player. I live in the Chicago area and Wisconsin is on television almost every week. Other than not being the best in pass protection I don't know of a reason for him to fall this far. He seems like a good fit for Baltimore, Tennessee, or Jacksonville.
I read something about a shoulder injury he had/played through might have been the reason why he has fallen. Had surgery on it.