The Catalan giants recently sacked Ernesto Valverde and appointed former Real Betis boss, Quique Setien as their new manager - which came as a surprise to many given that he has not been incharge of a top club in the past.
However, according to Kuper this was no mistake and a calculated move done by the board to ensure that the power remains with Messi who he also goes on to claim has major power over player transfers, managerial appointments and tactical decisions.
"Barcelona recruits no-name coaches. At this club, the coach isn't the boss. He doesn't determine how the team plays. The team's style of play is largely determined by the players, in particular by Lionel Messi."
"Messi's low charisma and habitual public silence are deceptive. Although Barca won't admit it, Messi has unspoken veto power over most player transfers, coach appointments or major tactical decision."
Kuper who is said to be close to certain club officials at the Nou Camp also went on to state that as long as Barcelona continue to have world-class players to complement Messi, the management would not stand in the way of the current situation.
"As long as Barca have a team full of experienced, world-class players topped by Messi, plus the remnants of their Cruyffian house style, a strong coach would only get in the way," he concluded.