Ira, Kevin,
Fair enough. I checked their site and they go out of their way on their history section to credit where they worked. (Actually a neat idea to put the chronology in like that) So, maybe Tom (and I) jumped the gun a bit.
All I can say for sure is that giving and taking credit for/by associates can be a sore spot, and in my experience, hard feelings after split offs are pretty widespread, lessened quite a bit when the new firm is as transparent as possible, i.e., wherever you show a project, be clear what your role is, even on the overview page.
And, that is not only to appease anyone that mentored them along the way, but because, in reality, its better for them. No one gets every job. Some clients wouldn't hire a new firm, others embrace it. You are who you are, personal relationships get more jobs than long resumes, and (insert your favorite cliché here) And, I remember losing a job to Bob Cupp and asking the owner why. Answer was, "same product, lower design fee, and "every time I say Bob Cupp, I can say Jack Nicklaus." My guess is mentioning Ben Crenshaw, Bill Coore, Pete and Alice, etc., would have a similar effect for them.....
Anyway, I am sure WAC already know all of that. Again, good luck on the new venture!