‘Buffalo’s young star quarterback is part of a youth movement at the position, as evidenced by the AFC’s remaining four teams. Starting for the Bills, Ravens and Browns are three members of the 2018 draft class — Allen, Lamar Jackson and Baker Mayfield — while 2017 pick Patrick Mahomes leads the defending champion Chiefs. The NFC, meanwhile, has three quarterbacks age 37 or older: Aaron Rodgers, Drew Brees and Tom Brady.’