How is this opinion formed that Collazo gave Mosley any problems

Anyway, I'm pretty sure that Cotto only gave Mosley problems becuase Mosley was set on knocking Cotto 'the brawler' out with one punch....
When he met Cotto 'the boxer' he came completely unstuck.

Not to say that he can't always deal with that style.
You could see Cotto was just beginning to wilt under Mosley's pressure... In the same back peddling way as shown in all of Cotto's proceeding fights.

So yeah IMO it's not so black and white. Mosley needs to get his estimation of, and preparation for Mayweather absolutely spot on.

The less surprises, the better.