Lowry's return is going to cause problems though. We can't go with a six man rotation. Well, we could, but we won't, so someone has to go to either the bullpen or the minors. Who will it be? Based on performance, it is quite obvious that Barry Zito is the worst of the six, but there are about 110 million reasons why he won't be going anywhere for the foreseeable future. That leaves Sanchez and Correia, the least established members of the group. Sanchez struck out ten in six shutout innings on Wednesday, while Correia went 7 2/3 shutout innings yesterday.
If it were up to me, I would go with the six man rotation. We aren't going to make the playoffs this season, so why not try some unorthodox things? With an extra day of rest, hopefully each pitcher could go deeper into the games, which would mean less stress on the bullpen.
Of course, Bochy will just move Correia to the bullpen, but wouldn't my option be more interesting, as well as more beneficial to the development of all these young pitchers.