The Bethesda Blog has been updated with an interview with Fallout: New Vegas' Senior Producer Larry Liberty:
"What's your job at Obsidian?
Put simply, I manage the production of Fallout: New Vegas. In practice, that means managing a small team of producers that in turn manage the five cross-discipline teams of developers responsible for creating the game. [We have broken the team into smaller sub-teams, each focused on a specific goal each milestone. Incidentally, these teams are all named after items found in the Fallout universe: Team Buffout, Fancy(lads), Mentats, Nuka, and Psycho.] I manage two of the teams myself and coordinate with the rest of my production crew in a relatively organic manner. My primary job is to see that Josh's [Josh Sawyer, Project Director/Lead Designer] vision is executed to the fullest extent possible while staying within scope."