Kelly hit just .186/.276/.248 in 113 at-bats for the Tigers in 2012, and actually managed to post a negative bWAR (-1.0) in just 75 games.
While in AAA, Kelly hit just .233/.341/.301 through 73 at-bats, spanning 20 games. Kelly's best minor-league season was in 2009, when he hit .331/.404/.465 in 372 at-bats through 105 games, while stealing 27 bases. Kelly was promoted to the Tigers that season, and hit .250/.311/.339.
Kelly is now free to sign with any team in the league, but will likely be hard pressed to find a major-league deal. The Tigers have expressed interest in bringing Kelly back to the organization with a minor-league deal, but it's unknown if Kelly is interested in returning to the Tigers, after being removed from the 40-man roster.