Draft and Trade Talk Message Board

I appreciate the time and any help you can be! I just pulled of a 3 for 1 trade that left me with 2 open roster spots. I need advice on who I should pick up from the FA wire.

http://baseball.fantasysports.yahoo.com/b1/37089/1

Here is my lineup:
C Yadier Molina
1B Prince Fielder
2B Orlando Hudson
SS Hanley Ramirez
3B David Wright
OF Curtis Granderson
OF Magglio Ordonez
OF Mike Cameron
Util Lance Berkman
BN Nyjer Morgan
BN Adam Laroche
DL Vlad Guerrero

SP Rich Harden
SP Armando Galarraga
RP Kerry Wood
RP Bobby Jenks
P Frank Francisco
P Justin Verlander
P Zach Duke
BN Jordan Zimmerman

Here are some FA I am considering
Batters:
Freddy Sanchez, Justin Upton, Michael Bourn, Mike Fontenot, Russell Branyan
Pitchers:
Edwin Jackson, Scott Richmond

I would like to pick up pitching as my team is very weak right now.

Do I drop Nyjer or Laroche for hitters as Pitt offense is horrible? Do I keep Duke and/or Zimmerman? Any help is appreciated.