I’m really hopeful that there will be only one or two that impact on-field play. My old brain can’t handle too many at the same time. 
FWIW, the baseball change this year was to limit the number of times defensive players can meet with each other to one per inning (a speed-up rule). Double first base will be required next year (a safety rule).
You're in luck, 'Bama, with your wish

. Snow is still on the ground here in Maine so it'll be a while before I can yell : "PLAY BALL". This will be my 60th and last season behind the mask and plan to lobby for the base ump to track the defensive players' meetings.

I assume that will often be pitcher and catcher, while it COULD be leftfielder and firstbaseman

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