Watching the game yesterday I saw that it's not Busquets that's the problem. The tactical positioning of the 2 other CM's were very poor. Neither dropped deeper to start an attack and allow Busi to play his trademark passes between the lines, they were 40-50yards away and man marked. So what happens is either Busi or Masch are forced into playing a long diagonal, resulting in losing possession and the CM's and fullbacks being too far up the pitch to contribute defensively leaving Busi doing a ridiculous amount of physical work. This system is not only very poor but it really doesn't play to Busi's strengths, it's actually the complete opposite to get the best out of him. Solution: Have Rakitic and Iniesta drop about 15 yards deeper into space a la Xavi when starting an attack to give more balance and have more dynamic movement from Neymar and Suarez ie diagonal runs that will open up space