Baseball announces new rules including 3 batter minimum for relievers

Baseball, sport of cheaters, has some new rules.   While the three batter rule will get a lot of attention, the exciting one is the 28 man roster for September with a cap on pitchers.

There are also rules about who is allowed on the mound or not, so I guess baseball now makes you declare if someone is a pitcher or not.  Otherwise, can’t I just start reserve infielder Jacob deGrom on the mount every now and then?