By Daniel Bates The Dallas Cowboys were stunned when defensive end Randy Gregory decided to jump to the Broncos after initially thinking they had a deal in place. Now with a hole left on Dallas’ defensive edge, CBS Sports’ Patrik Walker laid out a few routes the Cowboys could go to make up for that production; all of which are big names. “It’s now all about who they can get to replace Randy Gregory,” Walker tweeted. “Chandler Jones, Von Miller, [Za’Darius] Smith are three top names that come to mind. I mean, you have the money for it — now.” Any one of these pass rushers would be an incredible…