Coach Tata Martino took full responsibility for Barca 's late - season collapse after the game .
Busquets says the players must all take their share of the blame for the fact that the Barca are set to finish Barca 's campaign trophy-less .
Coach Tata Martino took full responsibility for Barca 's late - season collapse after the game , but Busquets says the players must all take their share of the blame for the fact that the Blaugrana are set to finish their campaign trophy-less .