The Spaniard, who now plays his football in the Premier League with Stoke City, worked under the current Blaugrana boss when he was in charge of the club's 'B' side.
Luis Enrique has come under-fire for dropping Lionel Messi in the defeat Real Sociedad and Barcelona's inconsistency in performance levels in the first half of the season.
And Bojan has added further fuel to the fire by hitting out at his style of leadership. "He is a very uncommunicative coach," he told L'Esportiu.
"Luis Enrique lacks understanding with the players. He has also been a player and he should know what it feels like to be in a locker room. At the end of the season we will see if his way of managing things is successful or not.
"He has a clear idea, working with his staff daily away from the players and there is little dialogue. Everyone has a different type of training and this is his."
Bojan, 24, played alongside Messi on a number of occasions when he broke through at Camp Nou back in 2007 and offered his support to his former team-mate.
"When I shared the dressing room with him, things were going well so there were no conflicts or problems. I do not know if this has changed now.
"Every player needs certain stimuli to perform and Messi wants to feel important and be in good company. He has earned the opportunity to choose when to play and when not to, because he is the leader of the club on the field."