Lille, the French football club based in the city of Lille, has recently made a strategic change to its tactics and lineup. The team has adopted a new formation known as the "5-4-1," which is designed to improve their defensive stability.

The 5-4-1 formation involves five midfielders, four defenders, and one striker. This system allows for more freedom and mobility on the field, with players able to move freely between positions and support each other defensively.

Under this new formation, Lille has seen significant improvement in their defensive performances. The team has been able to maintain possession of the ball better and limit the number of goals conceded. Additionally, the increased mobility of the midfielders has allowed them to create more attacking opportunities for their forwards.

One of the key aspects of the 5-4-1 formation that has contributed to Lille's improved defensive performance is the use of deep-lying midfielders. These players have been tasked with providing cover for the backline and helping to defend against counterattacks. By playing deeper, they can provide additional protection for the defense and allow the team to push forward when necessary.

Overall, the adoption of the 5-4-1 formation by Lille has been a successful move for the team. It has helped to improve their defensive stability and give them more freedom on the pitch. As a result, Lille is now looking to build on this success and continue to develop their tactical approach to football.