Don't take it the wrong way Andy, I'm with you on this. But George leaving AMR is a good thing. Not for AMR, but good for George.
GHC probably felt that AMR/Prodrive was holding him back. The AMR-(D)one showed that they had neither the funding or resourses to do a 'proper job'. The new WEC and increased manufacturer interest means that there should be plenty of opportunities over the next few years for a respected designer/engineer. It must be depressing to design something radical like the AMR-One and find there isn't the money to build it properly without compromise and develop it to acheive its full potential. By working for a big manufacturer with much higher levels of funding, GHC may be able to forfil not only his own potential, but also as someone I feel is a real racer with a true passion for Le Mans, his dream of an outright win.
I wish him the very best of luck.
Si