Mike Pettine let Kyle Shanahan walk to avoid “dark cloud”

Apparently, the skies are clear over Cleveland today. At the press conference to introduce the latest in the Browns’ revolving door of offensive coordinators (John DeFilippo), Browns head coach Mike Pettine said he let the last one (Kyle Shanahan) go to prevent a “dark cloud” from overcoming the franchise. “It was something that we didn’t…