Number of Warm-up pitches?

[officialtony]

DG,

Here I go again on the safety thing. I REQUIRE a 3rd player to " protect " whoever has their back to the plate. I want someone watching the ball off the bat on any ball that may come at the player with his back to the plate. And of course, he must have a helmet. I just feel this is the safe thing to do. No rule to cover it by either requiring it or prohibiting it. In my humble opinion, it is the right thing to do.
Thanks.