Getty Cleveland Browns quarterback Joe Flacco. The Minnesota Vikings aren’t going to deviate from the plan of starting second-year quarterback J.J. McCarthy , at least not ahead of the regular season. Minnesota brass is banking hard that McCarthy, a 22-year-old QB entering the second season of his $22 million rookie contract, can steer one of the NFL’s best offenses to playoff pay dirt where Sam Darnold and Kirk Cousins failed before him. But a security blanket behind the decidedly green signal-