If we go over the limit in 2020 by 10 or 20 mill it's not a big deal IMO. (Easy for me to say, I know.)
Let's say they go over by 15 mill. That's 7.5 mill in tax. Which would be less tax than they paid in 2018 or 2019.
My problem is with the idea that if we re-set in 2020 it will put us in great shape to sign Mookie. I really don't think so. If his demands are exorbitant, the re-set makes little difference.