When Pep Guardiola arrived at the house in Rosario, at his former teammate Gabriel Batistuta’s insistence, he assumed he would only have a brief conversation on coaching. He was there for 11 hours instead. When Héctor and Amalia Pochettino heard a knock on their door at 1 am in Murphy, they feared one of two things: trouble or tragedy. Instead, they found a football coach, who had heard a lot about their 13-year-old son, Mauricio, and wanted to meet him. Both Guardiola and Pochettino now regard the man they met as the best coach of all time. Given their résumés — Guardiola being one of football’s decorated managers, and Pochettino being a Ligue 1 champion — you would assume their shared idol ought to be a serial winner. He is not. He is Marcelo Bielsa — a man with six major trophies in a managerial career spanning nearly four decades. One could consider Bielsa a trailblazer who transcended conventional thinking to prove footballing success has little to do with trophies. Or, is he a benefactor …