The Sox would need somebody to put in for him assuming Crisp and Drew are already out there, game 6 of the series and Willie Mo is out there (Manny must be dead) then Hinske is your defensive replacement
They don't need Willie Mo's bat they need a true 4th outfielder who can replace Crisp if he gets banged up. How about trading Willie Mo, Hinske and a pitching prospect for Ichiro and let Crisp be the 4th outfielder