First and foremost you need a coach who can recruit at a college like WSU. Dick, Tony Bennet, broke the mold, by recruiting talented, but lower, lesser talented, lesser athletic, lesser ranked, lesser starred, raw, less developed, then developing them into winners.
Raveling, Sampson were great recruiters at WSU that is PART of why they were successful.
So it starts with great recruiting. Next the coach needs to have the ability to put together a awesome staff, who can both recruit, develop, etc.
Next the coach needs to have a system, and needs to be able to recruit to that system at WSU, and needs to be able to tweak system, and recruit to tweaking.
Next the coach needs to be able to develop, teach fundamentals, teach players to out execute, ala Leach, Bennet.
Next the coach needs to place highest priority on DEFENSE, REBOUNDING, NO TURNOVERS, over run, gun, offense.
Next Coach needs to have great X's and O's
Next Coach needs to be aware of the difficulties, of recruiting to, winning at Pullman, and needs to be able to use that awareness to overcome those difficulties.
Next coach needs to get a great offense, great shooters, passers, PG, Big Men, Wings.
Next coach not only needs to recruit well, but also needs to recruit to needs in order to create a balanced roster. A 5 star PG is no good if have no big men or 1 star big men, or a 5 star 3 or 4 or 5 does no good if dont have or only have 1 stars at the other positions. Better to have 3,4 stars at all positions, then to have 1 4,5 star, and 1 stars at all the other positions.
Now those are all needed but it starts with RECRUITING as the FOUNDATION.
WSU needs coaches who fits the above description to be able to consistently win.
There are plenty of such coaches, the trouble, difficulty, will be finding such a coach, and in getting such coaches to come to WSU.