Went to my first game yesterday since implementation of pitch clock and have questions:

Know Foxhall signals in the pitch. Is it to the pitcher and catcher?

The pitcher then checks his wristband for the pitch called.

If the pitcher doesn't like the call, can he shake it off and identify the change to the catcher?

Are our pitchers allowed to shake off a pitch and make a change?

Is there time to make a change in the 20 seconds allocated if our coaches allow this on occasion?

Thanks for the info. Hail State!