Kiko Calero, Jay Marshall and Colby Lewis have all had their problems this season. Kiko Calero has been banged up most of the season and it has showed in his performance this season. Calero is 1-4 with a 6.39 ERA and a 1.38 WHIP so far this season. The A’s will need him to pitch better in the 2nd half as he is very important to their bullpen. Lefty Jay Marshall was a Rule 5 Draft Pick and he has looked overmatched at times. He is 1-2 with a 5.83 ERA and a 1.60 WHIP so far this season. Marshall will stick with the A’s all season because they don’t want to lose him. Colby Lewis just plain stinks and he doesn’t belong in the major leagues at all. He is 0-2 with a 8.39 ERA and a 1.70 WHIP so far this season. The A’s would have a better pitching staff just by getting rid of Lewis.

Dallas Braden is finding out that major league hitters can be tough on rookie pitchers. In 4 starts, Braden is 1-3 with a 6.41 ERA and a 1.37 WHIP so far. In 19.2 innings, he has allowed 21 hits, walked 6 batters and he has whiffed 15. Braden will need to mix his pitches a little better if he wants to stay in the big leagues.

Jay Marshall started off the season like a ball of fire but teams have started to figure him out. He must adjust soon or he’ll be in danger of being a mop up man in the A’s bullpen. Marshall has pitched in 15 games so far this season and he’s 1-2 with a 5.68 ERA and a 1.34 WHIP.Â

Kiko Calero and Jay Witasick are both off to rough starts for the A’s. Calero has thrown 2.1 innings so far this season and he’s allowed 6 hits and 4 earned runs. He has lost a game and has a 15.43 ERA and a 3.00 WHIP. He’s better than that so look for him to turn it around soon. Jay Witasick is pretty much the mop-up man for the A’s and he’s done a poor job of that so far this season. He has pitched 2 innings and allowed 4 baserunners (2 hits, 2 walks) and 3 earned runs. He has a 13.50 ERA and a 2.00 WHIP so far this season which is awful.