OpenAI CEO Sam Altman took the stand yesterday in the third week of the blockbuster trial brought by Elon Musk, telling jurors that Musk wanted to “take a chainsaw through” the company’s research staff during his time on the board. Altman said Musk pushed co-founders Greg Brockman and Ilya Sutskever to rank researchers by accomplishment so the bottom could be cut. The exercise did “huge damage for a long time to the culture of the organization,” Altman testified. A Morale Boost When Musk Left Al