2 cornerback competition, but the race for the Dallas Cowboys' backup quarterback job is one of the most important storylines of the summer. "Sam Howell, to me, is clearly ahead of Joe Milton right now," Machota said. "If they had to play one game right now -- (if) they have to play two games, whatever -- Sam Howell is ahead of Joe Milton." Sam Howell has separated himself from Joe Milton in Cowboys' backup QB competitionThis may say more about Milton than it does Howell, who signed a one-year, $2.5 million fully guaranteed contract with the Cowboys in March. Sam Howell is giving Joe Milton little margin for error in OxnardGrier didn't offer anything last summer from a mobility standpoint.