I read this post with some measure of amusement. We'll be unveiling 3 or 4 major initiatives before the end of the year, which really represent the first complete turn-of-the-crank for the Brickhouse / Advanced Products model. Brickhouse is thriving. You'll be hearing more about these soon, and though I'm quite tempted to crow about them now... I'll resist.
Regarding the departures, Pipes "graduated" from Brickhouse (and hence left my group) several quarters ago. (And Ed had actually moved on from Pipes months ago.) From concept to hand-off Pasha spent more than a year on the project - frankly longer than we generally plan for... Our model is literally based on the premise that the DNA required to innovate as a "founder" on a small team is fundamentally different than the DNA required to operate on ongoing concern within a big company. (Hence Brickhouse.) Hence this kind of turnover is not only expected, but anticipated and baked into the model. We definitely ask our "founders" to help with tech transfer and transition, which both Pasha and Ed did in a totally responsible fashion. I know they both want to see Pipes succeed.
Frankly, my group is almost designed for "churn." I've been psyched to have "spun in" folks like Marc Davis (into our Connected Life business unit), Cameron Marlow (into Yahoo! Research), Matthew Rothenberg (into Flickr), etc. It's definitely a drag when talented folks "spin out" of my group and leave Yahoo, but it happens. Sometimes they go to Google. Sometimes they come back from Google. In fact that happened to Pasha. ;-)
I've got nothing but respect and admiration for both Ed and Pasha, and definitely wish them well. We'll miss them, but Brickhouse is thriving. Go Fish!