100% creative control does equal 100% control of who is booked and who isn't booked, what goes down on show, how the production looks is also something that lies heavily on the person with creative control. Heyman could have easily sunk TNA. Because the man is born with a silver tongue and could have convinced Ditzie to blow money on just about anything.
As even Dixie Carter did not have 100% control of the finances, I disagree. I'm not saying Heyman would have succeeded or failed though. I simply presented my own hypothetical about how I thought it could have worked, not that it would have worked. And the variable I felt made the difference would have been the financial restrictions.
And you're right, Heyman could have sunk TNA. I didn't say he would have been an unchallenged success, just that as a booker with no financial control, he may have helped the company. He may have also run it into the ground. Both options would have been possible. I just don't think it would have been any worse than what Hogan and Bischoff did.