What's the point of Pac vs. Margarito?

I don't understand why Margarito's name is being mentioned as a possible opponent for Manny. Mosley already KO'd him. Why not Berto who's undefeated.....or even Bradley? This is MORE than a coincidence people, ITS A PATTERN!!! Pacquiao's managers are PURPOSEFULLY keeping him away from black boxers (american raised....Clottey does not count).