Argentina coach Gerardo Martino has branded last season, his only season in charge of Barcelona, as a “failure,” claiming that he taught Lionel Messi & Co. absolutely nothing. Asked by Argentine newspaper Clarin what he was able to teach Messi in particular, the Argentine tactician responded: "Nothing. Nothing at all. Not to him or to Barca. I didn't make any mark on Barcelona, it was a blip in my career in terms of what I did as a coach.” Martino added: "It would be logical to use the term failure. I went to a team that always won and didn't win anything while I was there. ... All I learned in Barcelona was about being surrounded by stars, by the best in the world. I made some monumental mistakes with Barcelona. What were they? I will tell you in another life."