I remember when google went on an AI buying spree with DeepMind, and other professors, etc being hired. Why isn't sergeibrin buying up these professors? His fa

I remember when google went on an AI buying spree with DeepMind, and other professors, etc being hired. Why isn't sergeibrin buying up these professors? His fam hx and interest in this field are at odds with the lack of headlines of google pursuing this area of interest.