The Philadelphia Eagles know that at some point, they can’t keep turning the ball at the rate they’ve been doing and expect to win. Even with a pair of one-point wins over the Baltimore Ravens and the Cleveland Browns, the Birds have committed nine turnovers. If they keep going at this rate, they’re not going to be so lucky. Michael Vick and the Eagles offense, which is averaging over 400 yards per game, have made it priority for Sunday’s game against the Arizona Cardinals to hang on to the football. Chris Murray was down at the Eagles Nova Care practice facility in South Philadelphia this week and filed this report.