You are right in that you can't have too much pitching but the Red Sox also can't just take a talent like any of the ones projected to fill a spot in their rotation and banish them to the bullpen. It's possible someone would volunteer to work out of the 'pen to start the season, but I'm not sure that's something the Red Sox can count on. They also have the unknown that is Jon Lester (and Matt Clement, but no one expects him to be with this team in April).