If he wants to retire, he should. I don't think he should. He obviously has found a niche as a LOOGY and can probably pitch for another two years or more. But, a contract is a contract. Oliver should have looked at the second year option and seen a potential problem. At the very least, he should have made it a mutual option. He should either return to Toronto or retire. But he wants to return to Texas.
The Texas Rangers, the same team that traded him in 1998 to the Cardinals in the trade that brought the Rangers SS Royce Clayton and RHP Todd Stottlemyre and then again after the 2001 season for Carl Everett. Even after he had two solid seasons in 2010 and 2011 pitching in the Rangers bullpen, they let him go as a free agent. As much as Oliver loves pitching in Texas; he lives there, the Rangers have not shown they want him as much. Will the Rangers want him enough to trade for him now? I don't think there is an answer. He is not a huge difference maker and I think the Jays and Rangers both will be very good without him next season. That said, he is a useful pitcher coming off a very good season.