Tim Cook was the best Apple CEO for his time — John Ternus' tenure will be defined by AI

By almost any measure, Tim Cook has been one of the best tech CEOs ever. He diversified product lines, launched new lines of business, expanded across the globe, and grew Apple's overall market value ten-fold.Cook is the rare public tech figure who has, for the most part, survived the vagaries of a public life. Did he disappoint many when he...