It is never too late.Based on Dana White's original comment, EVERY WMMA headliner.
...only reason he headlined was because of Barao and his slipping techniques in the shower...but he had a good fight with TJ to his creditGotta be Joe Soto. He went from never having fought in the UFC to headlining a PPV card as a 135-lb manlet. He has subsequently gone 3-5 in the UFC and is currently a free agent that the UFC is unlikely to resign.
I'm confident Cindy Dandois will headline a card at somepoint.
Obviously Tim Elliot.
What did he do to earn a title shot?