Yet, the engineers did go with two AoA sensors. The MBA’s aren’t putting the planes together. Ultimately, it’s engineers who build the planes within the budget and parameters set by the bean counters. Somebody decided 2 AoA sensors were good enough and the engineers built it that way, presumably giving the ok to use just 2 sensors or they would have cut some other corner instead.

There’s plenty of blame to go around and many people deserve to be fired, but this notion that the engineers should get a free pass because an MBA told them to do it is absurd. Obviously, it was engineers giving assurances they could, in fact, build a safe airplane per requirements. It’s silly to think management would go through with building a plane if the engineers had told them in no uncertain terms that it had fundamental flaws. It’s a big fat fail all around.