Perhaps we are just now starting to see the effects of potential internal management hypocrisy with all these departures, especially the ones that only lasted a brief time.
Of course, this may be speculation on my part, but I can't see how decisions like those would encourage people, especially high performers, to stay long term if this is indicative of Yahoo management philosophy.
Ref:
http://gawker.com/5987043/yahoo-ceo-marissa-mayer-installed-...
http://gawker.com/5986462/yahoo-ceo-marissa-mayer-no-more-wo...