I wrote up an post who I think will be the fifth starter.  What does everyone think?

http://www.rotosavants.com/2008/12/who-is-red-sox-5-starter.html

I use #5 only in name as I think several of these options could be higher choices in the rotation.

I don't believe any of the major free agents will be signed, but they are possibilities.  Th emost likely in my opinion is Clay Buchholz, but Michael Bowden will be a Major Leaguer very soon.