That assumes he wants to stay. It's entirely possible that he may have other, better opportunities.
But even if he doesn't, no Tepper should not meddle again.
Not entirely. Newton wasn't a super cerebral QB. Neither was Delhomme. They weren't Brady / Manning type quarterbacks.
Newton was just a ridiculous combo of size and speed while Jake was a balls out gunslinger. Both had Brett Favreish level accuracy.
It's possible to win in different ways.