A little background on my team:  I am absolutely loaded.  It's a 15 team 5x5 mixed roto keeper dynasty league with 23 actives (14 hitters, 9 pitchers) and 17 reserves (can be anyone - majors, minors, high schoolers, japanese, etc.). 

My team is in a dogfight for first place right now.  As of this morning, I am actually tied for first with one other team.  My team has an absolute monster offense (having 73 out of a possible 75 total points), with pretty solid pitching (63 out of 75 possible points).  My competitor is the exact opposite - dominant pitching and only great offense.

The category I can make up ground extremely quick on is WHIP.  There are 5 teams all bunched together with a team whip of 1.28 - 1.30, and I am on the bottom end of that bunch.  George Sherrill, while helping me out a ton up to this point in saves, has also been killing my team WHIP.  Now that he hit the DL, I need a replacement.  A team out of the picture for this year just put the following offer out on the table:

Bobby Jenks, Cameron Maybin, Andrew Miller and Brandon Inge

for

Russ Martin, David Price, George Sherrill and Brett Wallace

I'm not the biggest Andrew Miller fan, but he refuses to give me anyone else of better value (like a Jed Lowrie or Alexei Ramirez).  Martin and Jenks are pretty equal in my eyes, and I'll need Inge as a replacement for Martin in my lineup.  The real question here is how much of a drop there is from David Price to Cam Maybin.  Despite struggling with pitching this year to some extent, my overall team pitching for the near future is studly.  My rotation for next year is likely to be something like Johan Santana, Scott Kazmir, Tim Lincecum, Clayton Kershaw, John Danks, Johnny Cueto and Ervin Santana.  So basically I can afford to give up Price, but at the same time I don't want to give up the next stud starter.

Any thoughts?  I usually don't post fantasy questions, but this one is really eating at me.