I realize this may already be somewhat incorporated within a pitchers Makeup rating, but a specific Rattle Rating would be a good new twist for each pitcher.  Regardless of overall ratings, or splits, a 0-100 resistance to getting rattled rating would be nice.  A tense, critical situation whether it be a game on the line, or opposing ballpark or 3 or more runners reaching base in a row.....95 would stay cool and calm and continue to work, 20 may have a precipitous ratings dip due to becoming rattled.

leslie's post is actually a support for this NOT being in HBD

he says it can't be done in SLB because everyone has an opinion about who is clutch ... meaning it is not objectively identifyable or measurable ... meaning it may or may not exist

so why add this bit of nonsense to an HBD engine that is intented to model "reality"?

or, to be sarcastic, I can say it is already in HBD, and it is called the general randomness that comes with simulation ... you can "see" the clutchess (or not) "opinion" of your HBD guys just like you do with real life players