Gomes and Carp in LF. Nava in RF. Victorino in CF.
Nava can be a backup CF in an emergency. He only played there once in his career, but like I said, he could play there in an emergency. Bradley also can play CF. Assuming he starts the year in AAA, he is just a call away if we need a true CF for an extended period of time.
The flexibility isn't that bad. Nava, Carp, and Gomes can all play LF. Victorino can play CF. Nava and Victorino can play RF. I assume Bradley can play in RF on a consistent basis. We already know he can play LF and CF.
If we look internally for a CF replacement, I don't think it is a dire need to get just a backup CF. If we only carry four outfielders, then Bradley is only a call away. If we choose to carry 5 outfielders and Victorino plays in about the same amount of games as he did last year, that means that Bradley would get roughly 40 starts in CF and would be able to pick up some games in RF and LF. Probably more in RF to give Nava some games off. The big question is if Bradley will be ready to be on the MLB roster to start the year (which is impacted by whether we resign Ellsbury).
Obviously, we should go after Ellsbury. If not, BC will explore FA and trade options for a RF and/or CF, preferably someone who can play both. Worst case scenario is that we do not sign or trade for another OF, which brings up the Bradley situation. I am all for trying to sign Carlos Beltran to play in RF, meaning we have a similar situation in LF as we did this year.
That would allow Victorino to move to CF. Nava, Carp, and Gomes in LF. Nava picks up some games in RF, and we use him or Beltran in an emergency in CF. Bradley is still an option as a CF if Victorino goes on the DL. We are not in a bad situation. In my opinion, we are fortunate to have the depth that we do, even with potentially losing a great leadoff hitter.
Defensively, I know that Nava is not the ideal RF, but he will be able to get more practice there in Spring Training. He did start 51 games in RF this year.