I absolutely believe it. I don't think Venus and Serena have greatly raised their game in the past few years. Maybe Serena is a bit more mentally tough. But the problem lies almost directly with the slumping of the rest of the tour. Martina and Lindsay are out to injury now, but they had been slumping a little---of course that could have been due to injury. Monica is streaky, but remember she is the only non-Williams to beat a Williams in a slam this year. Cap is also streaky, she can be blamed for losing to Serena in Paris, but here Mauresmo just played awesome. I doubt anyone would have beaten Mauresmo in that quarter. As for Henin, Clijsters, Dokic, Mauresmo, etc. have they really improved in the past year or so??? I think they may have all gone down a level. Hantuchova is promising, but give her a year on tour.
"After all, tomorrow is another day..."