It's understandable and not uncommon with other teams, too.
We do have a mess of starters lined up for next year. Of course, guys like Drohan can be easily replaced, but we had 81 pitchers start 2 or more games in the minors and a few draftees never started.
It looks like Mullins and Sandlin have already been converted to the pen and will stay there, but my guess is a few more will be, too. Or, we just trade or release some of the fluff.
soxprospects.com lists 6-7 SP'ers at every level. Some will end up on the IL, and some will start the season on the IL.
8 AAA: Tolle, Early, Dobbins (IL?) Perales, Uberstine, Drohan, Anderson, I Coffey (Mullins & Sandlin in pen) Criswell is out of options.
6 AA: Holobetz, Wehunt, Paez, Clarke, Aita, E Rivera (Dean, Rogers in pen)
7 A+: Valera, Fajardo, Witherspoon, Phillips, Eyanson, Tygart, Neely (Futrell in pen)
6 A-: Travieso, J Bello, Ruiz, Patton, Morgan, Brown
IL: Monegro, Duffy, Cason and others.