http://www.nfl.com/news/story/0ap300...h-key-decision

This article starts with things no one said to Rapoport. But then he gets to the nub of the argument:

As Packers doctor Pat McKenzie and other experts evaluate the scan, the decision was described as a "risk/reward" decision. The bone isn't fully healed -- and there was no chance it was going to be after two months. That was the expectation. Typically, 80-percent healed is healthy enough to be on the field. And Rodgers chose a surgical procedure involving two plates and 13 screws as an aggressive way of accelerating healing and protecting his throwing shoulder. It was a success.
So its not 100% and had no chance of being 100%. Is it 80%? RapSheet doesn't know. So you are left with two choices, McKenzie is consuming with specialist to see if its truly above 80 everywhere OR the debate about 79-81% is being done at the front office level.

My bet is on the former.