The Orioles thought they were going to have trouble in the starting rotation, but for the most part they have been pretty solid in that area in 2012. 29-year old righty Jason Hammel has been the Orioles’ most effective starting pitcher so far this year. He has started 6 games for the Orioles so far this year and he is 4-1 with a 2.09 ERA and a 0.98 WHIP. I don’t think it’s a mirage with Hammel as he is attacking the strike zone with his solid arsenal of pitches. 26-year old lefty Wei-Yin Chen from Japan has had little trouble his first time around in the majors. He has started 6 games for the Orioles so far this year and he is 3-0 with a 2.68 ERA and a 1.27 WHIP. The next three guys have been hit and miss so far this year, but they all have nice upsides. 26-year old righty Jake Arrieta has the best stuff of the O’s starting pitchers, but he hasn’t gotten the best out of it so far this year. He has started 8 games for the Orioles so far this year and he is 2-4 with a 5.21 ERA and a 1.24 WHIP. I think he’s going to improve as the year goes on. 25-year old righty Tommy Hunter has already been dispatched to AAA once this year. He has started 7 games for the Orioles so far this year and he is 2-2 with a 5.14 ERA and a 1.36 WHIP. He has the stuff to be successful, he just needs to learn how to set his pitches up a little better. 25-year old lefty Brian Matusz has been more bad than good this year, but lefties with his kind of arm will always get chances to show what they can do. Matusz has started 7 games for the Orioles so far this year and he is 2-4 with a 5.50 ERA and a 1.75 WHIP. The Orioles just need six decent innings out of their starters, because their bullpen is loaded in 2012.