What has happened to all the heels?

The WWE used to have a good range of heels to battle with the babyfaces, now they have two legimate ones Orton and Jericho with Edge being out and probably going to turn face on his return. These two, Orton especially are probably two of the greatest heels in recent memory but what about the rest? Yes CM Punk is being pushed as a heel, but there seems to be little crowd reaction to him so far, although he is a good wrestler, the crowds often seem indifferent towards him. If he can not create heat, fueding with the crowd favourite Jeff Hardy then when will he? Kozlov was a flop, Swaggers too young although he does create some heat along with The Miz. I think the main problem is that they have turned too many heels to faces and not created believible heels in return. This inbalance will be hard to turn round, as not many wrestlers at the moment have the ability to put in a good enough performance to make to the change, and new superstars take a while to become established. I am not sure who could switch to balance things up, does anyone have any ideas????