The Liverpool star spent some time working under Pochettino at Espanyol.
Liverpool's Philippe Coutinho in action with Southampton's Oriol Romeu
Coutinho spent the second half of the 2011/12 season on loan at the La Liga side when he was on Inter Milan's books, and he feels then was the time when he started to find some form. He ended up making 16 appearances for the club, and scored five goals - and identified the one key similarity between Pochettino and working under his current boss at Liverpool, Jürgen Klopp.
The Brazilian told Sky Sports: "My confidence has been really building since my time at Espanyol.
"The two coaches are actually very similar on the pressing side of the game. They spend a lot of time on that side of it and it's a lot of hard work."
Coutinho has gone from strength to strength since his time with Espanyol. He ended up moving to Liverpool from Inter Milan in a deal worth £8.5 million in the winter of 2013 and the 24-year-old has grown in stature during his time with the Reds.
Liverpool's Philippe Coutinho scores their second goal
He became a regular starter under Brendan Rodgers, and after Luis Suarez left the club many felt he was the player to take on a lot of the responsibility left behind by the Uruguayan.
Under Klopp his stock has continued to rise - as his goalscoring output. Last season saw him reach double figures in all competitions for the first time with 12 goals, and he already has six goals in all competitions to his name so far this season.
It's of little surprise that Coutinho has drawn on the similarity in the pressing side of the game when comparing Pochettino and Klopp - but it seems to be that type of football that gets more out of Liverpool's number 10.
Liverpool manager Juergen Klopp and Philippe Coutinho