In the ongoing Serie A football league, Fiorentina has been performing well, particularly in their recent match against Roma. However, there have been some tactical changes that have had a profound impact on the team's performance and strategy.

One of the most significant changes made by Fiorentina was the introduction of a new formation. The team started playing as a 4-2-3-1, which allowed them to control the midfield and create more chances for their attackers. This change in formation also helped the team to be more compact defensively, which is essential when facing teams like Roma who rely heavily on counter-attacks.

Another important tactical change made by Fiorentina was the introduction of a new player. The team signed a young striker from Udinese, who has already shown great potential. His arrival has given Fiorentina an additional goal threat, which has helped them score more goals than they did before his arrival.

The tactical changes have had a significant impact on Fiorentina's performance. They have scored more goals and conceded fewer than they did before the changes were made. Their defense has improved, and their attacking play has become more effective. This has led to an increase in their points tally, which currently stands at 9 out of 18 games played.

Overall, the tactical changes made by Fiorentina have had a profound impact on their performance and strategy. With the right tactics and the right players, Fiorentina can continue to perform well and compete for one of the top spots in Serie A.