Pitch & power. I don't see any reason to pitch down to -16° when you know you were just doing 300KTS at 0° pitch (collision avoidance excepted) Simple physics and a serious lack of SA imho. What I found interesting was the fact the captain PM was totally unaware even after the incident that the "drops" were caused in fact by his copilot PF inputs on the control column. So far for the old. A vs B. columns/side sticks ad nausam repeated arguments...