He was a Bronco. Jets offered him more money actually (and a chance to play for his old position coach), as Herm loved picking up old Bucs to mixed results (Donnie Abraham was solid, Damien Robinson not so much) but he turned us down and went to Denver.
Also, while yes it hurts seeing a guy who was once on the PS rack up 200-plus rushing yards in a conference title game, considering Kyle's dads penchant for turning absolute nobodies into 1,000 yard studs (Olandis Gary, Mike Anderson, Reuben Droughns), you wonder how much of Mostert's success could be attributed to an excellent group up front and coaching.
Probably most of it. Playoff history has a lot of one hit wonder RBs, Tim Smith for Washington in Super Bowl XXII, New England had a guy come out of nowhere a few years ago.
Also you are correct, I was thinking of Atwater.
