I really enjoyed reading these responses. Great stuff.
I wouldn't rush to the pink helmet, but it's great if that coach pulled it off successfully (the last thing I want my players thinking is trying to avoid striking out).
I really like the Inner Game of Tennis idea -- that's still the best sport psychology book ever (I'd rank Heads Up Baseball a close second....).
It was also interesting for me to read b/c it gave me a chance to see how I personally have evolved these past several years.
I'd say all the responses are "cognitive behavioral" in approach. Lots of really great stuff I teach players every day, but it's now to me the icing on the cake.
I'm now firmly entrenched in the "energy" world, or "energy psychology."
I would address this guy's nerves with "tapping."
Tapping gets to the root of the issue. It enables you to actually do the things people are suggesting here.
I noticed myself getting frustrated with even very good responses because there (IMO) is so much better way.
The home of it just moved to www.eftuniverse.com
I also teach it at baseball confidence.
But cognitive behaviorally, I would suggst my ABCs:
Act confident
Breathe deeply
Commit to your target
Do your ABCs on each and every pitch. Practice them.