It doesn't even need to be a big corp. At some point, within a product group I was working with, two factions developed, one of which was championing technology X (which the product was already using), and another championing the idea of moving to technology Y. The messaging out of the product group seemed schizophrenic -- one time they's say, "We're moving to technology Y soon", and another time they'd say "No, we're going to stick with technology X". But the reality was that the factions never changed their minds -- the overall messaging from the team just depended on which faction had the upper hand at that point in time. We're probably talking about 20 people total, including the partisans and the other engineers / management that were getting dragged one way or the other.