Snell will compete for playing time behind Najee Harris with the Steelers. As long as he's on the roster and Harris is healthy, Snell is unlikely to see many touches. And even if Harris were to miss playing time, there's no guarantee Snell would see the same kind of workload or even start for the Steelers. He's not really worth drafting unless it's clear he would be the Steelers' top running back in the event of a Harris injury.
Snell arrived as a limited talent and has offered limited (declining) production through 3 seasons. The Steelers have to be hoping that Anthony McFarland is ready to play a meaningful role in his 3rd season. If not, we might see Pittsburgh make a summertime move for another RB.
Benny Snell is the most experienced backup. In the past, he has shown flashes, including a 113-yard performance in week 1 2020 that ignited a mad scramble on fantasy waiver wires. He is limited to spurts of productivity and is solely a handcuff, though one of the easiest to obtain.