I think a lot of the "old guard" needs to go. Retire, or maybe form the Old Geezers of Wrestling Federation or something. Not that a lot of the "younger" crowd is all that much better, but...
The younger guys need to be given a bigger push, and there are a LOT of younger guys that I think have a good foundation at being the future of Professional Wrestling.
The Usos, Dolph Ziggler, Ambrose, Rollins and Reigns, CM Punk if he can grow up and stop taking his ball and going home, Cesaro, Fandango (despite the horrible gimmick), Daniel Bryan, the Wyatt Family, etc.
And some of these younger wrestlers have a good shot, if they can get over bad gimmicks. Ryback and Curtis Axel, Cody Rhodes (Golddust was done a while ago, but I really think Cody could do well with a solid push), Damien Sandow, etc.
RVD is done. Kane is done. Triple H is done. Sting (if he ever decides to show up) is done. Undertaker was done a few years ago, and they just kept proping his corpse up for Wrestlemania every year.
I agree, in concept. The young guys should be pushed more.
But I also can see WWE's reasoning. Today's Superstars just don't have that same talent that the stars of the 80s and Attitude Era did. They certainly don't have the charisma or mic-skills to hold a crowd's attention and manipulate their emotions, like those old stars did.
However part of that is WWE's fault. They just keep churning out these cookie-cutter characters from their development territory and make them robots that just do as Vince says. Back in the day, the stars were given a basic outline, and then they'd infuse their own attitude into it.
So because of that, to draw in the numbers, they have to pull those old, loved, charismatic stars back for WrestleMania, because CM Punk, Cena, Daniel Bryan, etc.; as much as the new generation loves them, they just aren't pulling in the same numbers or crowd as the old generation had.