TNA has run into a long standing problem with crowds. It is easy to draw a crowd, but the way you draw a crowd is the way you are going to keep it. That is why one can buy a crowd, but a bought crowd has to keep being paid. In the case of TNA wrestling, the crowd was bought with the Main Event Mafia. Now, it has a problem because it has to try and grow its "organic" talent- A.J. Styles, Samoa Joe, etc. They are cheaper and being younger have the longevity to grow TNA. Main Event Mafia you get what they bring, where they are is the most you will get out of them.
It is unfortunate that it takes time to grow talent, and in the mean time the bills continue. And an investment in ready-made talent does have a short-term payoff. But what has happened is that Matt Morgan, AJ Styles, and Samoa Joe are stale with little prospect of any immediate creativity. And with the Main Event Mafia, Sting, Jeff Jarrett, and Mick Foley, TNA singles action is in a stalemate with itself. Only TNA tag-team has any life to it.
A company cannot buy their way into growing, ask the WCW.