Hmmmmm ... Krall resigned from Chan's team, according to Skate Canada press release (emphasis added below):
Coaching Change for Chan
OTTAWA, ON: Christy Krall and two-time World Champion Patrick Chan have concluded their coaching relationship, following Krall’s indication of her decision to resign from Chan's coaching team, which was accepted. While the two have parted ways, it was with sincere best wishes to one another for the future.
Krall, based in Colorado Springs, CO, was a valued member of the team which coached Chan to his two world championship titles in 2011 and 2012.
Chan will continue to work with Kathy Johnson, as he revamps his coaching team. He will maintain his current training base in Colorado Springs, CO with more frequent return visits to his home in Toronto, Ont.