For the record, there is no official or unofficial Dallas Cowboys advisory board that owner Jerry Jones listens to before making decisions. Jones has long sought out the opinions of others. But most decisions are made in concert with coach Mike McCarthy, vice president Stephen Jones and personnel director Will McClay. So the news former coach Jimmy Johnson is now part of a Cowboys advisory board should be taken with a grain of salt or least the jovial spirit in which it was announced by a chuckling Johnson on a Miami radio show that has since gone viral. “Since the Ring of Honor, I am on his […