More Uber woes: Exec resigns, investor sues ousted CEO

DETROIT (AP) — Uber Technologies Inc. faced a fresh round of turmoil Thursday, with its global operations chief resigning and a major investor suing the ride-hailing company’s former CEO.
Ryan Graves told Uber staff in an email Thursday that he will transition out of his role as senior vice president of global operations in mid-September. Graves will remain on Uber’s board.
That board — and its support for former CEO Travis Kalanick — was the subject of a lawsuit fi