Mike McCarthy wants to go "old-school" with his offensive line this year, rearranging and settling them into one position. Versatility is great, but protecting Aaron Rodgers' noggin is far more important.
When Mike McCarthy introduced his zone blocking scheme back in 2006, he touted interchangeability and competition would create a solid offensive line. Five years later, we've seen top-notch quality players and flexibility don't necessarily go hand-in-hand.
"I firmly believe that any man’s finest hour, the greatest fulfillment of all that he holds dear, is that moment when he has worked his heart out in a good cause and lies exhausted on the field of battle – victorious."