Ellington isn't an every down back. He's not big enough to be an inside runner, and his cuts are average. He isn't great at making a man miss. Pretty much a mediocre NFL RB. Might have success, but isn't anything special.
I will bet my account Jones doesn't last until the 2nd round.
Guard in top 10 is a waste of a top 10 pick. Elite Guard play can be found in later rounds, especially in this draft. The talent difference between Cooper who you can either grab in the 2nd or trade down in the first for is minimal, plus Jones and Warford have elite potential. If you're drafting a guard in the first, trade down, and don't waste the value.