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I think French is in AAA because he is the 6th starter and the chance that the M's don't need a 6th starter by June 1st is 7.896% :) If Bedard is healthy, Pineda is dealing, and neither Vargas or Fister have turned into pumpkins by June 1st, then you can convert French into a lefty reliever. Or at least that is my guess what is going on here.
I do, however, share your worries. The M's bullpen hasn't been this devoid of talent since before Pat Gillick took the reigns. Jamey Wright aspires to be Bob Wells *shudder*.