I wouldn't worry about doing anything about your RP situation yet...you've got a top-tier RP and one of the best 2nd tier RPs. I would sit tight and wait to see how Spring Training and early April pans out. I've said it in probably all of my posts, but RP is WAY TOO VOLATILE to worry about right now. Last year it was the Cubs, Braves, Tigers, White Sox, A's, Mets, Reds, Blue Jays, Marlins, Rockies, Brewers and the 3/4 of the NL West: Dodgers, Giants and Diamondbacks that ALL went through multiple closers. Do you think D. Turnbow or T. Jones were drafted at all last year? Hermanson? Dempster?
This year it could be the Braves, Red Sox, Devil Rays, Marlins, Orioles, Cubs, Reds, Diamondbacks, White Sox, etc. Just hold on and be ready to jump on the waiver wire.
Otherwise, I think that your offense is not deep enough. To have Patterson as your only bench option is not wise. I think you need to use some of your bitchin starting pitching staff to give you a little more depth in your offense. I was recently able to get Baldelli and Hermida VERY late Yahoo leagues. I doubt they went undrafted...but maybe? Also, be ready to pounce on whichever D-Ray gets the last OF spot (Gathright or Delmon Young)