Has Caroline's consistency deserted her? It sure looks that way.
It seems like you have a good point, and I actually agree (to some degree) but I don't think it's reasonable or fair to set the bar this high for Caro. I've checked the race rankings at the end of July (the last week to be exact) for the last couple of years.
Caro has 5806 point for the first seven months of 2011, which leads the race by a good margin. That's what I call consistency. No. 2 on the list, Kvitova, has 5037 points. Now, let's see what the best players were able to gather at the same time in 2010 (the same points system was in use then):
1 SERENA WILLIAMS USA 5355
2 VENUS WILLIAMS USA 4085
3 JELENA JANKOVIC SRB 3747
4 SAMANTHA STOSUR AUS 3627
5 JUSTINE HENIN BEL 3415
6 FRANCESCA SCHIAVONE ITA 3198
7 VERA ZVONAREVA RUS 2968
8 CAROLINE WOZNIACKI DEN 2943
Caroline of 2011 has ammased twice the amount of points she did in 2010. We all know she was injured during the clay season of 2010, but she has also managed to collect more race points in 2011 than anyone else was able to do in 2010! That's not inconsistency; that's being up there with the very best!
The race leaders of 2008 were Jankovic and Ivanovic with 5540 and 5522 points respectively (when converted to today's scale). Again, Caroline of 2011 is actually better than anyone in 2008! Let's go back another year. Converting the race points of 2007, however, is quite difficult, as it was a completely different system. But the race leader Justine Henin had 3245 points, which probably equals 5235 points of today's scale according to my rough calculations. Henin was in spectacular form, but missed the Australian Open and could have gathered even more points if she was fit. But she wasn't.
2009 has actually been the only year since 2007 where anyone has been able to collect more points than Caro. The top 6:
1 SAFINA, DINARA RUS 6881
2 WILLIAMS, SERENA USA 5957
3 KUZNETSOVA, SVETLANA RUS 4262
4 DEMENTIEVA, ELENA RUS 3975
5 AZARENKA, VICTORIA BLR 3840
6 WOZNIACKI, CAROLINE DEN 3700
Serena won AO and Wimbledon, was a finalist at Miami, semi finalist at Sydney, Paris, Dubai, and QF at French Open. This is only slightly better than Caro's 2011 in terms of points! Safina, however, was really outstanding in 2009. Winning Rome and Madrid, finalist at AO, FO, Sydney, Stuttgart, and semi finalist at Wimbledon. This is what you're expecting of Caro. It's not good enough that she's better than anyone of 2011, 2010, 2008, or 2007. She has to be even better than the very best of the last five years. Which is a questionable demand, I think. She's 21, and she's no Wayne Gretzky, Edwin Moses, Eddy Merckx, or Michael Jordan. She's good, and she's doing very well, even when we compare her with the very best. That's enough for me. And I think we should be careful not to set the bar too high. If, for instance, Caro had won FO or Wimbledon 2011, then she would have either 7526 or 7646 race points at the end of July. This would perhaps not be an unrealistic figure if she was Seles, Graf, or Navratilova, or even an early Henin. But certainly unprecedented in recent years. This is what we (you) demand of Caro.