After Adidas decided to not renew the contract of CEO Kasper Rorsted, some feared that the company would be rudderless. But its decision to poach the head of smaller shoe rival Puma has put an end to that immediate risk. Bjørn Gulden, a Danish national, is the second Scandinavian in a row to lead the world’s second largest sportswear maker. He’s well acquainted with Adidas, and is set for something of a homecoming, having served at the company in the 1990s before later moving to Puma, where he became CEO in 2013. Before his time at Adidas, Gulden even played...