According to a source:
"Apparently the house is tired of his antics, like blowing off reporters, partying too hard and making clothes that no one wants to buy, and they have decided to sack him".
The source goes on to say Pilati's replacement is likely to be Olivier Theyskens, "who somehow keeps failing upwards — he drove Nina Ricci near financial ruin with clothes that photograph dramatically but no one can actually wear."
Great choice, YSL.
[Image via WENN.]