I've never overseen a merger before, let alone one of this scale, so pardon my blatant speculation... but will that really be such an issue?
It seems to me that the mismanagement of Acti/Blizz is a product of a corrupt corporate apparatus. From the inside of Acti/Blizz, the problem is basically intractible, but I don't think that really applies the same way once you install higher rungs of authority. MS is no stranger to acquisitions, either, so it's not as though they will be asleep at the wheel during this transition.
It seems to me that the mismanagement of Acti/Blizz is a product of a corrupt corporate apparatus. From the inside of Acti/Blizz, the problem is basically intractible, but I don't think that really applies the same way once you install higher rungs of authority. MS is no stranger to acquisitions, either, so it's not as though they will be asleep at the wheel during this transition.