Should I trade Joe Mauer because I read that he will be out for several weeks.?

No, drop Headley and pick up a back-up catcher like Snyder or Ramon Hernandez. Don't mess up that infield. Frankly, you don't need Albert. Mauer will be back and no one will trade you anyone of any value until he does come back. If you don't want to dump Headley, wait until the season starts and Mauer will be on the DL and you can pick someone up without a penalty. I do think you are one closer light. 7 SP's are too many if you are in a league that has inning limits for pitchers. All in all, you have a good team. Gonzo and Howard are going to give you a lot of power. And you have good speed too. I see you battling for the top three places in your league.