I think, with the current crop of Superstars, WWE should focus on Antonio Cesaro, Damien Sandow & Hunico if they're looking for fresh faces. I think Hunico could potentially do what neither Sin Cara or Alberto Del Rio have been able to do & Cesaro & Sandow aren't damaged goods from years of bad booking already. Move those guys up, not to main event, just up so that they're on every show, including Pay-Per-View. Then at the top, you can still cycle around guys like C.M. Punk, Daniel Bryan, John Cena, The Big Show, Kane, a returning (maybe) Mark Henry & Randy Orton.
I would "give up" on Ryback, Sheamus, Sin Cara, Wade Barrett, Alberto Del Rio, The Miz & Brodus Clay. That's not to say that they don't have a place on the card or should not still be used but I wouldn't try any of them at the top of the card, or in some cases, the top of the card again.
Then there's guys that I just have no clue what to do with, like David Otunga, Kofi Kingston, Alex Riley or Cody Rhodes. I think Ricardo Rodriguez could get really over as a babyface, so either turn ADR or get RR away from him. I'm not sure how that translates into money but that's WWE's job. He's a funny guy, people will cheer him.
The guys you want coming up, you give wins over the guys you want going down, like Cesaro beatin Clay clean. But that also gives you new credible faces to cycle around on TV with the top guys that you're also cycling around. So instead of getting John Cena beating The Miz for the 200th time, you can have John Cena Vs. Cesaro or Sandow for the first time.
There's a few guys, like Heath Slater & Justin Gabriel that I see a ton of talent in but I just don't think WWE ever wants to really do anything with them.
The one line of thought that I keep going back to is that if you have a bunch of top guys you have to pay a bunch of top guys top money. If it's just the John Cena show, you just have to pay John Cena. I think that's a very dated philosophy as I'm not a believer that one person sells a card anymore but I don't doubt that is the mentality that Vince McMahon still holds.