Antonio Horta-Osorio will need to draw deeply on the lessons he learned in turning around British bank Lloyds when he joins Credit Suisse as its new chairman on Friday. As one of Europe's longest-serving bank CEOs, he has received plaudits for bringing Lloyds back from the brink in 2011, when in an interview this month he said it was "about to die" after having to be bailed out during the financial crisis.