I think Jeanty is fast enough to be a very good RB. Probably not the homerun hitter he is in college, but still plenty good enough speed. I question is agility and whether he's a volume back that needs a lot of carries to get going. I also have concerns about the number of carries he had this year and if it will take a toll on him long term. And two fumbles in a game the first time he played a real defense also concerns me. But, that can likely be fixed.
I still think he's a first round pick, but I'm not a fan of taking him at #10 unless the trade offers aren't the right value and there isn't a better player available at the pick.
I agree with you that Warren, an extra 3rd, and a RB like Judkins would be better value IMO.