Cleveland Browns running back Jamal Lewis said he's frustrated by another losing season and believes coach Eric Mangini is pushing his players too hard. Lewis, who intends to retire after this season, said Thursday that he doesn't want to be a "babysitter" to Cleveland's younger players.
The Cleveland Browns invisible general manager has disappeared. George Kokinis, the hand-picked GM of first-year coach Eric Mangini who was rarely seen or heard in Cleveland, left the team Monday under unexplained circumstances after less than one year on the job. After reports surfaced that Kokinis was fired, the team issued an awkwardly worded statement saying Kokinis "is no longer actively…