Mirai Nagasu has switched skating coaches, according to the AP. She's moving from Charlene Wong to Frank Carroll, who currently coaches Evan Lysacek and famously coached Michelle Kwan for several years.
I think it seemed like there may have been some tension with Wong considering some interviews she gave around nationals, essentially stating that she believed Nagasu should be healing her hurt ankle rather than competing. This is an interesting move and I just cannot wait to see all these American ladies duke it out for those two coveted Olympic spots!