How many teams are in your league and what is the scoring system?
First off, if Bubba Crosby (of the Yankees) is on your team, drop him. He's not going to play regularly in the Yankees lineup and therefore holds minimal fantasy value.
The only reason to hvae Wickman is for saves. Unless your league doesn't count saves, I would look for another closer to help your saves, or you could drop Wickman and ignore saves altogether. Zito hasn't been pitching well and your starting pitching seems solid so I probably wouldn't pick him up.
Also, which Perez do you have, Odalis or Oliver?