>>13631166They really don't. I gave up all hope when they signed Kota Ibushi after showing up in awful shape and not even trying.
Even Kenny Omega, arguably the guy the whole company was intended to be built around doesn't even try unless he's loaned back out to New Japan.
A lot of the older guys know if they could have they would have made it to WWE by now. This is their retirement money, and it's the same rate regardless if they're even booked or not.
And the younger guys rarely wrestle more than twice a month, so even if they wanted to get better they don't really have any opportunity to do so.