I don't believe he was called up last year. Just checked, and nope.
8+ K/9 in 2006. a 1.09 WHIP.
Again, he's a guy that misses bats. do the Reds have a guy in the bullpen that misses bats? Promote him, move Medlock to AAA as he has zero to prove in AA, and DFA anyone over 35. take your pick.