How much you want to bet? They HAVE TO get rid of him if they draft Murray!
They don't. The Cardinals can sit there with him as a tradable asset for a damn year or two if they want, until they get an offer that they like.
Having a viable QB on your roster is (as I have repeatedly said and debated) far more valuable than any other position. If you have a QB go down around the beginning of the season, you suddenly get a LOT more desperate for a QB. See Bradford, Sam circa 2016.