IMO, I don't think it needs to be all that high on the list, assuming that a Top 5 SP is brought in to replace Hamels. Even if you throw out Mills because he lacks options, you still have Chatwood and Alzolay on hand, and if we're getting to 8th starter territory we're either to the 'unreasonable contingency' point or other names have had time to assert themselves(Abbott in particular, maybe Miller).