I think people are taking too much away from Mosley due to how Mayweather made him look. This is not uncommon for Mayweather opponents. JMM couldn't carry the weight, Hatton can't fight at 147, Mosley is done, etc. Nothing Mayweather did to make Mosley look old will be replicated by Berto. Berto is still not beating any of the top 3 welters.