#2 Feature edgier talents

Rebellion.
It was something the Attitude Era and the Ruthless Aggression Era had an abundance of and it's exactly what is missing from the product today. Sure, there are flashes of it here and there from guys like Finn Balor, Kevin Owens, Aleister Black, and Bray Wyatt, but the company never capitalizes on it for one reason or another.
In fact, from Dean Ambrose to CM Punk and even now with Finn Balor, WWE has not capitalized on the market of fans that are angry and want to see someone that represents them. Interestingly enough, however, WWE seems to feature those guys less and less and leaving young angry fans with no one to root for.
WWE needs a Superstar to step up and be the next anti-hero, so the fans can rally around them. Whether that turns out to be a repackaged Finn Balor or the Firefly Funhouse's own Bray Wyatt remains to be seen, but WWE needs to feature more stars like them if they want to captivate a younger audience.