There's not too many superstars though thats part of the problem imo.
The brand extension was first brought in as they had so many stars following the dissolution of WCW and ECW. But now the number of genuine top line stars is veyr low. They haven't created a proper headliner since, Orton, Cena and Brock Lesnar, that's why they have got desperate and started throwing the belt on the likes of Cena and Swagger, to try and force them to get over and be viewed as main eventers.