The Brazilian made a much anticipated €120 million move from Liverpool to Barcelona in January 2018 and initially enjoyed success at Camp Nou.
Things started well, with the 26-year-old netting 10 goals in 22 games.
In his last half season with the Merseysiders, the South American star featured in 20 games in all competitions and directly contributed in as many goals (Transfermarkt).
Coutinho himself has admitted his disappointment at his form.
According to UK Sun report, the ex-Liverpool star has failed to re-enact his Premier League form, since his switch Barcelona 18 months ago.
"I have not had a good season", he told Spanish publication Marca.
"My performances have been a lot worse than I expected they would".
Even so, he insisted that he gave it his all: "But we only gain confidence with work, and I've worked hard." .
Subscribe to Squawka's Youtube channel here. In the 2017-18 campaign, the German manager even opted to hand Coutinho the captain's armband for a few games in December 2017, still, he chose to move to the Catalan giants in the winter transfer window of 2018.
Silva wants Coutinho to feel valued and comfortable in the team. "In the two friendly matches we've played, he was the best player on the pitch". "Not just because of his passing and goal scoring ability but also his defensive work-rate".
"He is a lot happier again now and he is playing with a smile".