Jones and Ben Tate worked out for the Cowboys on Thursday, The Dallas Morning News reports. The Cowboys may want to add some competition for their in-house options to replace DeMarco Murray, but it's hard to imagine either Jones or Ben Tate would be of much use. Jones was out of the NFL in 2014, while Tate played for three different teams and looked entirely washed up. Even with owner Jerry Jones known to favor former Arkansas Razorbacks, it will be surprising if Jones gets a contract.