Wow so many people got released from WWE?

I know and I don't understand why WWE releases so many people because they release talented wrestlers like Mr. Kennedy, Jeff Hardy although I think he wanted to go to TNA, and all the wrestlers they do release end up going to TNA. I think WWE is all about business and if you don't do what they want they will let you go unless you are one of their top superstars and their money makers like Randy Orton, John Cena, HHH of course, Batista, Undertaker, Edge or any other superstar that makes them a lot of money. Also I think Sheamus sucks and didn't deserve the title for the short amount of time he has been with the WWE but whats funny is WWE will push untalented wrestlers like Shemaus just to make them seem good and then people will start to like them.