TNA was the drizzling shits long before Hogan/Bischoff walked into the company. This is the same company that had Reverse Battle Royals, Reverse Ladder Matches, Electrified Cage matches, buried most of the home-grown wrestlers in favor of WWE/WCW guys and many times had people actively in the crowd chanting for the booker of the company to be fired. Weird how people forget this stuff or seem to think TNA was good before 2010, it had good periods but it was mostly a poorly booked company that had one good division before they ended up burying that by 2007.
Dixie deserves blame for the death of TNA, sure. She made dumb mistakes like keeping Russo around/constantly re-hiring him but Jarrett warrants a good chunk of the blame himself. He came up a horribly dumb business model of having weekly PPV's and almost caused the company to go bankrupt six months in until Dixie saved it. He's the same guy who originally brought Vince Russo in and kept himself on top for four years while refusing to put over guys like AJ Styles, Samoa Joe, Monty Brown, Abyss (when he was good), Chris Daniels and others. I mean, look at who he DID put over - Kurt Angle, Christian, Sting etc. How was any of that beneficial to the company? This is the same guy who was a career mid-carder until he got to main event in the dying days of WCW.
There's plenty of people to blame for the death of TNA, not just Dixie Carter or trying to pin-point it to Hogan/Bischoff coming in. TNA was never gonna be a major company even if those two didn't come in