The quarterback quandary: Favre and the Vikings

With the likelyhood of Brett Favre becoming the 2009 Minnesota Vikings quarterback looking almost like the sure thing. What happens to the competition between Tavaris Jackson and Sage Rosenfels that will make both of them better and on an improved team that won 10 games last year, should easily pick up 2 or 3 more and repeat as NFC North champions? They were to have the ability to establish themselves as a long (or longer in the case of Jackson) term starting quarterback. It was looking to be one of the highlights of camp for many Vikings fans.