Wrong, so wrong... Did you even watch games Aceves started last year? Bottom line, he wasn't very good. I think he had an ERA in the mid 5's and averaged about 5 innings a start.
I think Bard has the tools to become a 2nd or 3rd starter in this leauge. Like ORS said, he has the build and delivery to crank heavy gas even into the late innings. I think the best part of transitioning Bard to the rotation is I think it suits him better mentally. For some reason I have always gotten the sense that Bard wasn't entirely comfortable in big spots late in the game. I think the FO knows this, which is why there was almost no talk of Bard taking over once Papelbon jetted to Philly. I think starting he will be able to relax and feel less pressure then coming in to shut down a team completely for 1 inning.