28. Leonardo Jardim
PSG are literally backed by an entire oil-rich country. So Leonardo Jardim had a massive task on his hands to compete with them, yet still managed to win Ligue 1 in 2016-16, a truly remarkable achievement. He suffered the consequences of his squad being decimated over the following two years and was sacked by the board.
They brought in Thierry Henry who flopped horrendously. Jardim was desperately invited back and he managed to save the club from relegation. The Portuguese boss loves to get his team playing attacking football and is excellent at bringing through young players, like Kylian Mbappe.