Why Jack Dorsey Is Ready to Save Twitter

On a fall day in 2010, Jack Dorsey stepped before his staff at Square, his payments startup, to deliver a pep talk at its weekly all-hands meeting. He was dressed in a rakish dark Prada suit and tie that was much more Don Draper than Silicon Valley wunderkind. Just two years earlier, Dorsey had been ousted from his CEO role at Twitter, where he failed to delegate effectively, motivate sufficiently or inspire trust in his leadership. Now, he appeared to be a transformed man, not only in appearance, but in vision.