1) stick to rankings. #5 fights #4. #1 fights champ. If champ refuses, stalls, or doesn't fight within X months you strip him.
2) pay fighters more. More motivated fighters = better fights and more frequent fights.
3) find way to minimize injuries and weight cut issues. It's happening WAY too often now. Still butt hurt over losing Khabib and Ferguson.
4) stop shoving WMMA up our asses. Every other sport has separate shows for women. Have a women's UFC If you want. Call if WUFC for all I care. WME might like that too since they seem to think quantity over quality.
5) if it ain't broke DON'T FIX IT. I.e firing Goldie, Joe Silva, entire international office etc.
Basically, just make fighters happy, stop watering down product and appealing to casuals with show fights and respect legitimacy of the sport by following ranks etc