You can't teach an old dog new tricks, so the saying goes.
But the Arizona Cardinals thought their old dog Kurt Warner could teach Matt Leinart.
As a former Heisman trophy winner and first round draft pick, the Cardinals quarterback didn't like it much when the team chose to start newcomer Derek Anderson and keep him on the bench.
After sitting behind a potential future Hall of Famer in Kurt Warner for a few years, Leinart's play hasn't developed the way the Cardinals organization hoped.
Now Leinart wants out.
Here are five possible teams he could end up with very soon.