Has Floyd Mayweather Jr become 'flat footed' and lost a step?

It seems that Floyd Mayweather Jr's performance against Shane Mosley didn't impress everyone.
In addition to the usual cast of characters who are against the boisterous "Pretty Boy", Freddie Roach has really been vocal in his assessment of Floyd Jr. Roach fired off some harsh words about the self-proclaimed "face of boxing":

In an interview with Golzka, Roach said the following:

"He slowed down a little. He used to be a faster fighter. He doesn't move like he used to. He fights more flat-footed. He changed his style [against Mosley] because he can't use his legs anymore....his legs are not there."

I was stunned when I saw Mayweather Jr willing to go toe-to toe with Shane Mosley. Freddie thinks this strategy was due to Floyd's legs being gone. Basically, Roach thinks Floyd has lost a step and can no longer dance or 'stick and move' like he used to. Personally, I'm not sure if I agree with this assessment. I don't challenge Roach's expertise here but let's just say Freddie has a huge stake in this.

When Floyd got into a rhythm, after the second round, he looked sharp to me. Floyd Jr looked quick and able to do whatever he wanted against Shane. Now, speaking of Shane; if anyone looked flat footed or to have 'lost his legs' it is Mosley.

"Mosley hurt him in the second round but he couldn't finish [him]. I expected more [from Mosley]." Roach, Golzka

We all expected more from Shane Mosley. I credit some of Shane's inability to Floyd's skills. But I also credit some of Shane's problems to his age and the fact that he had a 15 month layoff. Yes he was in the ring with a superior athlete but that doesn't excuse the fact that Shane had Floyd Jr hurt and appeared to be unsure of how to finish him. It's almost like Shane was as shocked as the rest of us that Floyd Jr was in trouble.

And if Roach's assessment of Floyd Mayweather Jr's fight against Shane Mosley wasn't enough, Freddie Roach shared his predictions of how or what Manny Pacquiao would do against "Money May" in a fight!