Lyon's tactical shift to the 4-4-2 formation has been one of the most significant changes in their season so far, and it is likely to have a big impact on their chances of winning the Ligue 1 title this year.

The 4-4-2 formation was first introduced by Lyon's manager, Bruno Genesio, during the 2017/18 season, and it was initially criticized for being too defensive. However, as the season progressed, it became clear that Lyon were using the 4-4-2 system to great effect, especially in the latter stages of games.

One of the key players in Lyon's success with the 4-4-2 formation is striker Alexandre Lacazette. Lacazette has been instrumental in helping Lyon score goals, and his return to the team has boosted their forward play significantly.

In the 4-4-2 formation, Lacazette plays alongside fellow forwards Memphis Depay and Anthony Martial, while also providing cover for the back four. This allows Lyon to use their full attacking depth, which can be crucial in tight matches where both teams are playing well.

Overall, Lyon's tactical shift to the 4-4-2 formation has paid off, and they now sit at the top of the table with a comfortable lead over their nearest rivals. With Lacazette's return to form, and Lyon's other attacking players performing well, there is no doubt that they will continue to dominate their league this season.