The Mosley who fought Cano still destroys the Margarito of Cotto II as easily as he did 4.5 years ago. As much as Mosley has declined, so has Margarito (and the gulf between them was pretty wide to begin with) Besides, Mosley retained some of his power and effectiveness at 154. See De La Hoya II, Vargas I & II, Mayorga. Margarito didn't. See Santos II, Garcia, Cotto II.