Cook hasn’t even been able to consistently get on the field as RB2 this year, though his usage is increasing slowly, so I’m not really thinking about him being RB 1 next year.
If you take a RB in the 2nd then the goal should be having someone that can be your workhorse and not just someone that is in the game for 10 plays. I can’t imagine Cook’s usage is going to increase now. He’s now the clear odd man out in that RB room until next year.