Sorry, would you care to elaborate? I'm not really sure what you mean by "the M&A department the first time around". I think the fact that only _some_ of the team members are ex-Googlers is significant.
Additionally, what other business case could their be to purchase such a small, new company. Couldn't Google just have integrated these features into their shiny new Buzz service _last week_ and have overshadowed Vark very quickly?