Good to see him back, but I fully expect him to be little more than a handcuff. The talent difference is significant. Hampton is going to set the bar at a level Najee just cannot reach. Especially if he has the backfield all to himself week 1. This is going to be a 2 to 1 split in carries on a normal day.
Are you being serious? Najee came into the NFL with a higher draft grade than Hampton, he's bigger, more agile and has proven his ability to tote the rock in the NFL on some pretty bad (pathetically bad passing) Steelers teams. With the threat of an actual passing game, he should get better although mileage is a concern. Harris is on a prove it contract later in his career, but Harris should be the 1A to Hampton's 1B this year IMHO. Hampton might develop into something and he might not, but Harris has never been below 1,000 yards in his career. Grades of Hampton were all over the map, so it will be fun to see what he can do.