I meant no way to quantify a relationship. Its easy to quantify is a player feels good... you just ask them. And the answer is gonna be "i feel great" 99% of the time because athlete bro culture says you always say you're good to go unless you're physically unable to walk under your own power.
It's easy to quantify results... you just look at the box scores. When players fail, the vast majority of the time they'll always blame themselves, because that's what they do. When they succeed, they generally give credit to others... pitching coach prepared my well, catcher called a great game, i just had to execute... blah blah blah.... point is, even when they truly do feel locked in, theyre gonna suck just as often as they shove, and theyll still shove on days when they dont feel their best because variance is a thing.
What happens when both a hitter and a pitcher are both "locked in" ? One of them has to fail. So... i guess only one of them was really locked in and the other just wasn't? Why cant they just summon this mysterious locked in feeling all the time? And if your hypothesis is correct, someone who is locked in should almost always be able to pull off what they want, regardless of the opposition's intent. Your hypothesis only looks at one side of the equation, not other variables in play, of which there are virtually countless, especially in baseball.
Hence, unquantifiable. So we, the fans, apply whatever beliefs we have to the situation to make something that can never make sense, make sense.