If you aren’t researching the guys that your opponent has been fighting, you aren’t doing complete analysis. I skim tape on opponents pretty often, and at least click through their profile and see what they have been up to.
For instance, Eduardo Dantas was Archuleta’s hardest fight, and prior to Juan he beat Toby Misech 29-28. I know who Toby Misech is because I watched him lose to some scrub who didn’t get a UFC contract on Tuesday Night Contenders.
So if Dantas is scraping by guys like that, he is probably nowhere near a guy like Pitbull who just KO’d the 155 champ who would be a ranked UFC fighter.