Trey Edmunds was a Running Back at Maryland and came into the league before either of his brothers, Tremaine and Terrell, came into the NFL. Edmunds went undrafted and earned his spot on the Saints after the preseason, but was relegated to the practice squad. After he was released in the offseason, he had no home until the Steelers came calling and added him to their practice squad.
I never really watched Edmunds myself at Maryland, but I checked out his Saints tape, and I gotta tell you, I think he has a shot to be a better addition than most think.