The former Blues player says La Liga giants made a mistake in spending large amount on the ex-Liverpool star and needs Frank Lampard to prevent the identical fate.
Having noticed Coutinho battle at Barca on the rear of a big-money change in January 2018, also through a loan spell in Bayern Munich, people at Stamford Bridge are thought to be readying an olive branch.
There’s been discussion of Frank Lampard looking for a short-term bargain to get its South American schemer that contains a choice to purchase.
A permanent move has also been mooted, with Barca keen to free up capital which could be invested elsewhere.
Leboeuf, however, is not convinced that Chelsea, that has a summertime deal set up for Ajax winger Hakim Ziyech ought to be splashing the money to a player who seems to be something of a fading force.
“I believe Coutinho is a fantastic player and I am not trying to be harsh on him. I believe I wish to locate Barcelona accountable for the situation since they place a cost on Coutinho that I believe does not belong to this league.
“Now it is difficult to undo the machine, it is difficult to believe you may even the cost and take to shed like #65m to get a move.
“But should you check on the standard of Coutinho, obviously he’s a gifted player, obviously he’s a fantastic player, but does he burst to the very best, top players?
“When I visit Neymar, once I visit [Cristiano] Ronaldo, once I visit [Lionel] Messi, once I visit [Kylian] MbappeI visit leading, leading players.
“Coutinho includes a cost of a top, top player and I do not need to create a statement but I am not sure he’s the grade of a top, top player.
“And how can you undo the machine? How can you place Coutinho in a group and how can you rate him today?
“You speak about Chelsea, prepared to [cover ] £80m. I believe that it’s too much to get a player where you are not sure he is going to come across the amount he had been, he was, at Liverpool and isn’t anymore.
“That is why I believe Coutinho should not go to Chelsea since there’s not any space for him and I believe that it is too much to invest to get a player at which we do not understand the norm.”