Steelers rookie running back Jaylen Samuels was, as recently as February, officially a tight end.
Samuels was listed as a running back on his NFL.com predraft scouting report, but that's a retcon. He worked out at the scouting combine as a tight end. And while he got the chance to perform a few running back drills at the combine, running backs run their sprints and workouts on a Friday, tight ends on a Saturday, and Samuels was a Saturday guy. He competed in the underwear Olympics with Hayden Hurst and Mike Gesicki instead of Saquon Barkley and Nick Chubb.