When I ran into former Facebook COO Owen Van Natta at last night's Fast Company party, he was in high spirits, claiming to enjoy life as an unemployed dad. But he's made no secret of his desire to get back into the startup game at some point — this time as CEO, not a dispensable No. 2. Which is why this photo, sent…

At 21, Darian Shirazi, is just old enough to order a drink at the bar of Junoon, the Palo Alto Indian restaurant where this shot was snapped. But he's already logged two years at Facebook, the sale of one company, and a round of funding from Draper Fisher Jurvetson for Redux, his current startup. That was enough to…