Former Barca B coach Gerard Lopez believes Ousmane Dembele is worth persisting with.
Dembele has clashed with Barca management this season over attitude problems and poor timekeeping.
But Lopez told L'Equipe: "If he's good, people will forget everything else, they will love and applaud him.
"Barcelona people have a short memory if the results are there. Romario, Ronaldinho, Neymar were not the toughest players in the world, but they were good on the field, so people did not care.
"If Dembélé plays at the level at which the public expects him, he will become an idol here."