Obsidian Entertainment - Interview Pt. 2 @ Gamasutra
The second part of Will Ooi's interview (you may remember the first from back in June) is up at Gamasutra. A big part of this article focuses on Alpha Protocol with some fascinating comments:
Lastly, in terms of what we would have done differently, one thing that definitely impacted the reception was out of our control (release date) - first off, people expected more from the delay when there was never any plans to do anything more with the title during the delay. In addition, being released after Mass Effect 2 with clearly superior cinematic sequences nor after Splinter Cell which specializes in some of the best stealth mechanics to date didn't help, either. To explain the publisher reasoning, however, I do know that there was a drive to push the "buzz" of the project so players were aware of it, and it was felt that eight months would give that lead time enough for people to be aware that Alpha Protocol existed. That said, even with this lead time, the PR efforts still came on late, so I don't know how much that helped in the end, except pushing the game at least eight months out from a more favorable release time, at least in terms of features. If it had been released much earlier (and it's rare to say this), I think the reviews would have come from a different perspective... as it stood, it defeated expectations on a number of levels in the marketplace.