He talks. But....

1. Mosley was at 154 until a couple months ago, and he himself said he wasn't ready for Floyd or Margarito yet. He actually called on Mayweather to face Margarito.
2. Again, when has he called out Floyd? He's barely moved up from 140 and the two have had conflicting schedules. He'll call out Mayweather after he sparks Judah but not right now.
3. Williams wants Margarito...he has fought absolutely nobody to this point. His biggest fight was Mitchell who Floyd used just to feel out 147. A transitional fight.
4. This is the most valid one. But he got surpassed for THE welterweight champion.
5. He's only fought once at 147 and didn't look good. Said himself he needs 3 fights before Floyd.

I think you're jumping the gun a bit to quick. Floyd isn't retiring it's all BS, money talks for Floyd and despite all the talking he does, he is a guy who is sensitive as to what his legacy will be. He has 5 more years to give and over that time I bet anything he faces off with at least 3 of these guys.