The Brett Farve Saga continues

Well well well, the Brett Favre saga seems to be the story that will never end. Nowadays he seems to be sending shoulder MRIs to the Vikings, and if everything goes well, there is another possibility that he will consider un-retiring for the second time. It does'nt matter if his shoulder is fine or not, the Vikings need to be aware of how unlikely it is that Favre will be the answer to the team's quarterback problems.
Reality is that these days 40-year-old quarterbacks are very lucky if they make it through the season healthy, asking them to lead a team to the playoffs is too much.

If the Vikings are serious about bringing Favre in, it would make sense for them to sit him down for the first half of the season, then start playing him as the season hits November and December if Sage Rosenfels/Tarvaris Jackson are playing as expected. Or they could use him like Don Shula used Earl Morrall and Don Strock in the twilights of their careers--he would bring them in as relievers to pick up the team when it needed a lift. Doing this would save the few fire balls left in Favre's.