from what I've read in that article, it is the WIlliam camp that said it was a no go: apparently top rank proposed William to delay the fight by 2 more weeks but they refused because they were afraid (as the hand didn't look good) to get screwed again, so they went with their own replacement plan in Sergio Martinez. Then, Toprank found another opponent for Pavlik and there we are... hopefully somewhere in march or april they'll make it happen.