There are only approx 5-6 players who have a >80% snap share. True workhorses. I expect McKinnon to have a 50-70% share.
I am not a McKinnon truther. I own no shares of him in dynasty or redraft because I did not value him like the consensus. However I absolutely value him higher that Damien Willaims. If you’re a Williams owner, I would say that there is an opportunity to take advantage. Equally, if you’re a McKinnon owner - worried about the player, the competition, the workload - than go get a guy like Williams. High upside, maybe similar risk.
I personally don’t think Damien Williams is the answer. I think the Chiefs will address this in free agency or the draft. Even if just to add depth. The team will currently start the 2019 season with only 2 running backs on the roster. They’ll need at least 3 to 4.