In the recent match between Lille and Manchester United, one of the key factors that contributed to their success was the formation they adopted during training. The team's new system of 5-4-1 formation has been praised for its effectiveness in protecting the defense and improving the overall stability of the squad.

The formation has allowed Lille to create more space on the pitch, which has helped them to score goals at higher rates than usual. It also allows the team to move forward more quickly and make quick counterattacks, which is essential for winning matches.

However, there have been some concerns about the formation's impact on the players' performances. Some believe that it could lead to fatigue and burnout, while others argue that it can be too much of a pressure on the defenders who need to stay alert all game long.

Despite these criticisms, the formation has proven to be effective for Lille and should continue to be used by other teams. With the right setup and approach, the team can achieve their desired results and improve their chances of reaching the next level.