The roster says Saquon Barkley is a running back. And it says Jordan Mailata, Landon Dickerson, Cam Jurgens, Mekhi Becton and Lane Johnson are offensive linemen. They have different meeting rooms, different position coaches and they’re sure built differently.

Saquon Barkley’s phone buzzed in his locker stall with no one around to hear. Just before the halftime whistle of the Eagles’ penultimate regular-season game, the running back received a text message from longtime trainer Moe Gibson that he wouldn’t see until hours later.