I think the first step MLB will take is to give each team three plate challenges per game. And based on what we’re seeing right now, there is ample opportunity to easily win three per game.I haven't followed the automated/computer ball and strike systems very closely. As a replay/challenge system do they try to be exactly on the edges of the plate and top/bottom of the zone? It seems to me the best system would be to have an umpire calling balls and strikes, but an almost instant replay system that changes a strike to a ball or vise versa if it is an inch or two outside or inside the zone. Basically trying to give recourse for 'blown' calls but not changing calls that are by fractions around the edges.
I’d be curious if MLB is currently using the computerized system to grade how the umps are doing. Those consistently missing the strike zone should not be in the big leagues, and at least nowhere near the playoffs