#2 Diego Simeone
After being appointed in 2011 at Atletico De Madrid, Diego Simeone has built a terrific reputation for himself.
Enthusiasm and passion shape his sideline's antics along with his nature to rap out orders constantly but just like how he has a loud voice, his achievements speak loudly too.
Europa League triumph in his very first season was quickly followed by Copa Del Rey and UEFA Super Cup victories in the next season as he was building a team of his own.
Under the leadership of several senior players like Gabi and Diego Godin, Atletico marched ahead and painted the city of Madrid in their colours as they surpassed Barcelona on the final day and conquered La Liga.
Two Champions League finals did end on a dismal note but the Los Colchoneros got their second Europa League victory where Simeone's statistics went viral after a victory over Marseille last campaign.
Till the end of that season, the Argentinian had led his side to eight finals, six trophies and in 377 games, he had won 233 times by keeping 200 clean-sheets which is absolutely massive.
The football Simeone plays is distinct and resolute and it is framed with rigidity and sustenance and even though it's not fully attacking, it does yield fantastic results as his record shows. Manchester United can certainly think over him.