Bush was cut by the Cardinals on Friday, Kent Somers of AZCentral.com reports. The Cardinals brought Bush aboard last week some some added depth at the running back position, but he was inactive for last Sunday's game against Atlanta and the team decided Friday that Kerwynn Williams was more deserving of a roster spot. With Andre Ellington (hip) ruled out for Week 14, the burden will fall primarily to Stepfan Taylor and Marion Grice against Kansas City.