Liverpool CEO Peter Moore says that selling Philippe Coutinho to Barcelona has proved one of the keys to the club's ascent over the last two years.
Moore explained that they "hardly lost a game in what remained of the season" after letting the Brazilian head to Camp Nou in a deal worth 160 million euros.
In comments made at a fan event in South Africa, he also praised the way the money was reinvested elsewhere by Jurgen Klopp, with goalkeeper Alisson Becker and defender Virgil van Dijk coming in.
"When Philippe Coutinho left there was a change, not only to the structure of the team but to the way we played football," Moore said.
"If you recall, when he left two years ago, then it was a complete change of style of play and we [hardly] lost a game over the balance of the season.
"No disrespect to Philippe but he had a different style of play. The money came in and the money we got from Barcelona then helped fund Alisson Becker."
Coutinho is currently on loan from Barça at German side Bayern Munich, who have an option to make the deal permanent in the summer for 120 million euros.