What about with exactly the same equipment and a Must Compete (instead of Do Not Compete) contract?
I don't think any of the current batch were hired for their talent except possibly Kimi, and I am sure that nobody in the current field will be permitted to win as long as TGF continues to drive.
My bet for the TGF-less future would depend on if someone could buy the contract of Mike Rockenfeller from Porsche. He has the ability, focus and aggression of TGF without the lack of sportsmanship and fear of competition in his own garage that blots That Man's copybook.