COMPLETELY agree with this statement. I've always said it for years, the only way to beat Mayweather is to box him, but unfortunately, no one has the ability to do that, so they have to try to rough him up.
Khan is the only fighter out there that has the ability to stand in the middle of the ring and box with Mayweather. Pacquiao, as great a fighter as he is, simply can't do that. He doesn't have the size, reach, nor skill. His only option would be to attack Mayweather, which simply leaves him more open to counters