It's a tough question to replace the triangle Andres Iniesta, Xavi and Sergio Busquets, and in fact, Spanish football has learned the ugly truth the hard way. As it happens, Iniesta and Xavi were without a doubt two of the best players of their generation, and stars of that quality are as rare as gold dust in the modern game. But after a miserable World Cup campaign in 2014, a disappointing Euro 2016 and a chaotic World Cup 2018, there is finally a glimmer of hope on the horizon. The rainbow at the end of a miserable…