I think the Cards have already moved on from Levi. Otheriwse you would hear something from Graves giving his lip service about trying to keep him. Plus there is this from Dan Pompei:
*Levi Brown is not out of contract, but chances are he will be on the open market. And chances are he will have a number of interested suitors. In fact, Brown could be the best offensive tackle on the market. The fifth pick of the 2007 draft had been a disappointment earlier in his career, but he played pretty well for the Cardinals in 2011 and is drawing interest from other teams who are anticipating Brown shaking free. The Cardinals owe Brown a $6 million bonus on March 13, and his salary for 2012, the last year of his rookie deal, is $14.5 million. So far, the Cardinals have not attempted to restructure or extend Brown’s contract.
I know Graves can only do 1 thing at a time but they would probably at least have talked to him about re-doing his contract.