Slight problem - Nixon won't be there.
Defensively, I think our best unit, as the roster stands right now, is
C - Varitek
1B - McCarty
2B - Pokey
SS - Nomar
3B - Youkilis/Bellhorn (they both seem average at 3B, not bad though)
LF - Manny
CF - Damon
RF - Kapler
(Ortiz DH against RHP, Millar or Mirabelli against LHP)
Problem is, that has McCarty, Pokey, and Kapler in the same lineup. That's bad.
Offensively, the best lineup would be
C - Varitek
1B - Ortiz
2B - Bellhorn
SS - Nomar
3B - Youkilis
LF - Manny
CF - Damon
RF - Millar
DH - Mirabelli by default
Problem is, this lineup is Pokeyless, and has miserable range in RF, with limited range at 1B.
The only obvious, undebatable positions on this team, in considering offense AND defense, are C, SS, LF, and CF. With 3B falling under "kinda" with Youkilis, given the small sample size.