Umberto Mazzarri is a well-known Italian football coach who has made a significant impact on the number of tackles in his club, Marseille. As a player and as a coach, Mazzarri has always been known for his tactical approach to defense and his ability to create opportunities for his team.

In terms of coaching, Mazzarri has had a profound influence on the number of tackles he has achieved. He has consistently led his Marseille side to numerous victories and has also been praised for his tactical acumen and ability to find the right combination of players to counter opponents' attacks.

One of Mazzarri's most notable achievements was his efforts to increase the number of tackles by his team. By implementing a more aggressive style of play and employing a strong physical presence, Mazzarri was able to achieve this goal. This not only increased the team's overall intensity but also helped to increase the number of tackles that were taken by their teammates.

Another aspect of Mazzarri's coaching style is his emphasis on teamwork and communication. His team-oriented approach allowed them to be successful both on the field and off it. He encouraged his players to work together and communicate effectively with each other, which ultimately resulted in a higher level of productivity and cohesion within the team.

Overall, Umberto Mazzarri's impact on the number of tackles in Marseille cannot be overstated. His tactical approach to defense and his ability to find the right combination of players to counter opponents' attacks have played a crucial role in helping Marseille to achieve success both on the pitch and off it.