Pitch clocks have been tested in the minors, and will apparently will be implemented in the majors next season. This was unexpected. Restrictions on defensive shifts, and the number of pick off attempts by a pitcher will also be implemented. Shift restrictions I thought would get a trial in the minors next season, so that's unexpected, and the thing about limiting pick off attempts is out of the blue.
https://www.bleachernation.com/cubs...clock-shift-restrictions-pickoff-limits-more/
https://www.bleachernation.com/cubs...clock-shift-restrictions-pickoff-limits-more/