If LaViolette is still there at 20, I think we would have to take him, much like we took Garrett Mitchell when he slid in 2020. Considering he was expected to be a top-3 or so pick to start the year, falling to #20 could give him a massive chip on his even more massive shoulders.
I love Zach Root and his repertoire. He may "only" be a mid-rotation guy, but he'll be an outstanding one at that. I've been following him closely all year and he has yet to show me anything that says he wouldn't be a great pro. He would be a very safe pick if we decided to take LaViolette.
Russell, along with his Vol teammate Marcus Phillips, could be a top of the rotation guy, or could be a high-leverage reliever. Some similarities to Misiorowski in that regard. Of course, there's his health history to consider as well. He'd be a lock to go in the first round if he had pitched all year, but having only thrown 23 innings this season, teams will have to weigh that risk versus the reward.