If you play in a homerun graveyard like the A's, lovely. You need everything to win - you don't think the Red Sox could have won the title without having a lineup that could crack good pitching, do you? Sometimes good hitting is not scoring 6 runs a game - it is being able to ignite a rally when your 7-8-9 hitters come up.
No guarantees about the Sox bullpen at all - bullpens vary so much year to year, that to think that Breslow can deliver again next season is crazy. Indeed Uehara will not repeat this season from simple regression alone. If the Red Sox threw a smart offer at Jesse Crain, that would be very sensible - he could be dynamite when used carefully. Manny Parra is a good idea as well (failed young starters are a good source for potential bullpen dynamos)
Internally all of the pitchers like De La Rosa, Ranaudo, Webster, should get serious looks at bullpen help also. Also, if they cannot move Dempster and he is relegated to the bullpen, his stuff is a strong candidate to play up when he does not have to turn a lineup over.