The Tigers are starting to wonder about the decision to hand the car keys to the inexperienced Rick Porcello and Ryan Perry. Porcello, 20, has had one good start in four; Perry, a first-rounder in last year's draft, has walked 10 in 7 2/3 innings out of the bullpen. The concern with Porcello is that his curveball hasn't been good enough to keep hitters from sitting on his fastball. . . . Nick Swisher's fast start with the Yankees somewhat mirrors the beginning of his White Sox season. He seems a bad fit for a Derek Jeter-run clubhouse, however, so it will be interesting to see how he holds up. . . . When Phil Hughes (22) and Joba Chamberlain (23) won on Tuesday and Wednesday, they were the youngest Yankees pitchers with consecutive wins since Dave Righetti (23) and Mike Morgan (22) in 1982. Hughes' six scoreless innings in place of Chien-Ming Wang strengthened the argument for moving Chamberlain to the bullpen when Wang returns. . . . Give the Twins credit for going 11-11 without Joe Mauer. Their catchers hit .301 while Mauer was away, including a .357 average in 16 games by Jose Morales.