The eleven that Koeman takes out tonight, regardless of injuries, is the most logical that he can taker. The system, which will be a 4-2-3-1, is the most logical after not working for the three centrals. The substitution of Luuk De Jong is understandable, as he cannot compete against Atlético de Madrid centrals.
Barcelona's plan only happens to have the ball by having five players in the center of the field. Gavi and Coutinho will be listed to the band, but they will also help in the center of the field. Without the ball they will have a hard time defending.