#2 Leonardo Jardim
Perhaps one of the most improved managers this decade, Leonardo Jardim has showcased that he's a true coach that will work with the required budget and will integrate youth prospects into his team.
Having won the Ligue One and reaching the semi-final of Champions League with a very young squad back in the 16/17 season, Jardim has proved to be a fantastic coach. The Champions League run wasn't an ordinary one as well, he successfully beat Pep Guardiola's Manchester City and Thomas Tuchel's Borrusia Dortmund, both managers known as very offensive and intelligent.
With Monaco having one of the best scouting networks and youth academy, Jardim successfully utilized that chance with integrating one of Europe's finest and brightest talents that in the future will go for a humongous fee. Manchester United is a club very well-known for giving youngsters a chance, perhaps that's Jardim strongest side.
Leonardo Jardim throughout his Monaco spell exhibited that he likes to play a counter-attacking football with prodigiously pacey fullbacks and wingers. Having the likes of Kylian Mbappe, Benjamin Mendy, Fabinho, Sidibe, etc helped him fully implement his style of play in Monaco which rewarded him an impressive Ligue One trophy against the giants Paris-Saint Germain, eventually ending their 4-year dominance.