After a breakout year in 2011, CM Punk has a safe position at the top of the WWE both right now and for the foreseeable future.
But just because Punk is currently the company's top heel and its No. 2 overall star, that doesn't mean that he should get too comfortable.
While the WWE roster may not be as loaded as it has been in previous times, there are still plenty of superstars who would love to take Punk's spot as the WWE's No. 2 guy and are definitely capable of doing so.
I don't think anyone will really challenge John Cena for that highly coveted No. 1 spot anytime soon, but Punk better watch out.
Here are seven WWE superstars who are good enough to take Punk's spot as the WWE's second biggest star and/or its top heel.