What works for one player may not work for another.
Their deficiencies are probably on the individual level.
I've been involved in sports where inconsistent competitors would say that they used up all of their good shots in practice.
But the really good competitors would be consistently good in competition.
Geno has said that some things can't be taught, but can only be learned through experience.
I think that the assistant coaches should be tasked with helping players work through their slumps.
Maybe they can bring in former players to give helpful advice that worked for them.
Helping them to analyze their mechanics and technique.
And then there's the spiritual side of being a competitor where a person needs to find there personal inner secret to success, what works for them.
For some it might be a ritual, or some kind of a personal sacrifice, or both.
We've all read about the crazy sounding rituals that some great athletes have practiced.
UConn players are probably too young to have developed such strong superstitions.
Wiki has a section that mentions Wade Boggs and all of his superstitions.
en.wikipedia.org