After his injuries is Curt Shilling still someone I want on my roster?

Also available are Benson, Rodrigo López from the much of an impact is Leo going to have on those guys and would it be enough to justify picking them up?

Also, I have Scott Rolen as my 3B...should I pick up some other 3B? Randa, Boone, Inge, Crede and Castilla are all available as of this post.

First time fielding a team....HELP!