Cast off the Seahawks' roster at the end of the preseason last year, Collins wound up at the bottom of a Ravens depth chart that seemed nearly as crowded, but by Week 3 he seized the starting role and never looked back. While he lacks the straight-line speed expected of top-shelf feature backs, Collins proved to be one of the most elusive runners in the league, showing outstanding footwork and vision to find a crease and hit it with authority. The 23-year-old's ability to make defenders miss even in tight quarters allowed him to overcome the mediocrity of Baltimore's offensive line. Collins has the size and frame to handle plenty of snaps, but his skills as a receiver are still a work in progress, with limited cause for optimism. While Javorius Allen and Kenneth Dixon are around to pick up any passing-game slack, there's no reason to think Collins will fade away as suddenly as he arrived. The Ravens' O-line should improve with G Marshal Yanda returning from an ankle injury, and the team likely will run some zone-read plays if rookie QB Lamar Jackson gets on the field.