Re: From year-end number 1 to not even making the Y.E.C...
The players have figured her out, because Caroline TOLD THE WORLD how she can be beaten. Back at the start of 2011, she was asked in a press conference why she's had so much success. Caroline said the only way to beat her was to be more consistent over three hours of play or to hit her off the court. Since the players figured out pretty quickly they did not want to slug it out for three hours against a player who is likely more consistent, they decided to just go for their shots against her. And it worked.
It's actually pretty amazing she was able to defend her #1 ranking in 2011. Many would say it's because the ranking system is flawed, but I don't buy that argument. The ranking reflects the season - not just the slams. If you went by just GS results, Li Na would have been YE #1. That would have been a joke since she barely won a match after the French Open.