I think early in the year you just tell guys to be judicious. If it's not a strike three call or not a key situation or not certain you are going to win don't challenge and then you see how it goes and you decide which guys you have to reign in and which ones you feel comfortable giving the freedom to challenge. I think the catchers will probably initially have complete autonomy to challenge. 

grayruby

Stacker_Sports

MLB will use Automated Balls and Strikes Challenge system in 2026

This will make for some interesting locker room conversations as to who actually gets to use the challenges vs. keep their yap closed.

I think we as fans think team first but these players are independent contractors, with big egos and often times, in it for themselves regardless of how the club tries to portray the chemistry.