Easy, if UCF was playing P5 teams every week (because presumably they would BE in the P5), they would also have the ability to RECRUIT like a P5 school, and have the financial resources a P5 school has. Its the same argument that fans on THIS board make all the time in reference to Marshall moving up.
That's not what herdman is asking at all. He's asking what would happen if the 2017 UCF Knights, as currently built and funded, competed in a division like the SEC West or Big Ten East.