Tim was able to scale jobs and ives legacy for a decade exceptionally well, in large part with the help of Foxconn. And he did a great job of in housing major parts of the stack to reduce dependency.

Once that had run out, he ran out and VR plus intelligence were there worst failures the company has ever seen. Completely inept ideas, one that very publicly failed to launch to a hugely damaging degree.

Cook was great at growing others legacy, and completely inept at making his own.