Barcelona is currently struggling with defending, and this recent loss highlights the need for tactical adaptation. The team has been playing poorly in defense lately, with several key players unable to perform at their best. This lack of consistency on the defensive end has led to a number of poor results.

The team's inability to defend well can have serious consequences for its overall performance on the pitch. It can lead to conceding goals easily, which can hurt the team's chances of winning matches. In addition, it can also cause frustration among fans who expect Barcelona to be able to handle pressure on the ball.

To address this issue, the team will need to make some changes in its tactics. One possible solution would be to implement a more physical approach to defense, where players will be required to use their strength and speed to disrupt opponents' attacks. Another option could be to increase the size of the defense, as players may find that they are not able to maintain control of the midfield when they are under pressure.

Ultimately, improving Barcelona's defensive performance will require a combination of tactical adaptability and player commitment. The team must be willing to invest time and resources in developing new strategies and tactics, while also being patient and flexible enough to adjust as needed based on the situation on the field. Only by doing so can the club hope to continue making progress on the road to success on the pitch.