‘Quarterback Rob Johnson says he’s still the same hard-throwing, laid-back kid from Southern California. His Buffalo Bills teammates beg to differ, noting he’s grown in poise and confidence as the team prepares for Sunday’s season-opener against the Tennessee Titans. "He’s shown maturity. He’s shown that he’s ready to lead the ballclub. He’s shown that he’s the guy this year," Bills linebacker Sam Cowart said Wednesday. "Once the season gets underway, we get a couple of wins and he proves to the fans, himself and to the team that he’s our quarterback, I think there won’t be so much of a quarterback controversy. "It’ll be Rob’s show."’