Who? Maybe that was the problem.

What did he even do for Apple's AI strategy for 7 years?

Apple is still far behind in doing anything useful with AI.

He did nothing, or net-negative. Same as Google; it was totally unclear how this guy got promoted to the level of power he had based on his history.

[Now I remember- he came in with the metaweb acquisition at a time when search was going all-in on knowledge graphs and semantics]