If Ozzie gives BMac a shot in the rotation, you'd have to assume Buehrle, Garcia, or Vazquez would be the odd man out.
There are good arguments for each one.
Buehrle: steep decline seems to indicate injury
Vazquez: baffling inability to get outs after 5IP
Garcia: pitches like Tommy Chong
Never thought I'd say this, but right now I would vote Buehrle off the island. His consistent performance over the last 5 seasons means a lot, and I'd hate to see him tear up his arm.
Meanwhile, with the deep bullpen, Ozzie could actually follow through and yank Vazquez after 5. For his part, Freddy is still averaging more than 6IP Over his last 10 starts, and somehow manages to keep the team in the game.