David Eulitt/Getty Images Bills quarterback Josh Allen, middle, is on board with the tush push sticking around for at least another NFL season. Sean McDermott hasn’t hid his feelings about the tush push. The Buffalo Bills coach has been one of the controversial play’s biggest critics, citing concerns about player safety. McDermott doubled down on his stance at the NFL’s annual league meeting in March, saying it would be in the league’s best interest to ban teams from running it. “It’s two