I don't think you try stuff out in practice this late in the season. Shaking off rust, yes. But if throwing interceptions is considered shaking off rust, Jay has been shaking off rust his whole tenure in Chicago. Not trying out new plays; I mean trying out in terms of seeing what an injured player coming back can do. The guy is known for being able to make big throws, so aren't you going to see if he can still air it out and have him toss up shots like that in practice? Nobody's saying he's never going to throw picks, but this whole "JOSH MCCOWN DOESN'T TURN IT OVER" meme is ridiculous, especially if we're now extrapolating it to practice performances. McCown has had a very good run and it's great the times he did turn it over it's been called back, but the guy didn't suddenly outgrow all of the years he's turned the ball over.