Not over a 3 year period. Here is the longest run each season for Najee:
2017 - 35 yards (61 carries)
2018 - 32 yards (117 carries)
2019 - 31 yards (209 carries)
So a total of 387 carries over 3 years and a long of 35 yards. That seems almost impossible to do. I mean, K Robinson busted off a 70 yarder this year and we've routinely seen our backups or RBs who split carries break off long runs. The downside to this is even if the play is blocked perfectly you probably aren't getting a long run with Najee. Whereas, almost all the other top prospects, will produce a long run or TD with a well blocked play. I have no idea if long speed is something he can improve upon by shedding some weight. He looks to be in great shape so not sure if that's a possibility..