I won't worry with Donnelly against the weak hitting AL West and the lighter halves of the AL Central and East, but I'll be every bit as worried about him as would be for Timlin against NYY, CLE, CWS, and DET. I agree with a700. The bully has been great so far, but Papelbon is the only guy I have no fear with. Jima, after the last two outings, is approaching a similar, albeit not as absolute, comfort level.
I think this BP has a chance to be good, especially since the rotation looks like it can get deep into a great majority of the games, even against good teams. I stood up for it on those premises earlier after Jackson's homer predictions had them as a bottom of the league bully, but I'll need to see some continued success before I think it's truly a league leader. Could be, but time will tell.