It's a nice start. You're seem to have an above average and balanced team.
You should have dropped Feliz instead of Hermida. Since you had the 1 or 2 pick (assuming based on Pujols' presence) and correspondingly low waiver priority your league should not let you get Roberts. (If you do it, though, that's great for you.) Drop Feliz for Hermida (or if you did get Roberts then Jorge Sosa).
If Jorge is still with your team, get him out of there for a CL or stud middle reliever/prospective closer. Sosa will just get in the way- you have high IP guys in Oswalt, Willis, Buerhle, and Garcia and need some RP. Try Burgos since he tentatively has KC's job. Or Fernando Cabrera, Linebrink, or Shields if you want some quality innings.