I feel for Claire, too. When she was a student at SAB, Martins selected her (along with Silas Farley) to demonstrate choreography during a special presentation in honor of Balanchine's birthday. I viewed her as someone that Martins had his eye on. However, Emma has emerged as a stronger dancer and that has played out in casting in recent years. I'm not sure if it was under Martins or Stafford, but I viewed it as significant when she was cast in Barber Violin Concerto. Three principals and Emma and she held her own.