You sure those players didn't just have higher level of experience? Iirc experience plays a bigger role in such clutch situations (assuming you define clutch as in the last few minutes of the game)
Yes to how I am defining it.
And yes I am sure about the experience.
Unless sensational experience has the same effect as awful experience.
35+ seasons of BB. And you get bored of doing the same things over and over. And you start to use your scrimmages to experiment and tinker things to try and see if you can understand the GE anymore or not.