Lionel Messi has more power at FC Barcelona than the “no-name coaches” it appoints, according to a club insider.

Barca named Quique Setien as its new head coach last week after the sacking of Ernesto Valverde, much to the surprise of Setien, who said he never imagined it in his “wildest dreams,” according to ESPN.

The 61-year-old arrived at Camp Nou with a sporadic track record, having managed six teams in Spain since the turn of the century, none of which he won any domestic honors with. He also managed the Equatorial Guinea national team for a brief spell in 2006.

Yet Barcelona appointing Setien was no mistake, according to Simon Kuper, but was instead a deliberate move because a more experienced coach would only stand in the way of the man with the real power: Messi.

"Barcelona recruits no-name coaches," Kuper, a sports journalist with close ties to the Spanish giants, wrote for ESPN. "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."

Kuper, who works for the Financial Times, said he based his conclusion on "dozens of conversations with club officials."

Barcelona did not immediately reply to a request for comment from Business Insider.

"Messi's low charisma and habitual public silence are deceptive," he continued, adding: "Although Barca won't admit it, Messi has unspoken veto power over most player transfers, coach appointments or major tactical decision."

Since the departure of Pep Guardiola from the club in 2012, Barcelona has appointed five head coaches.

First came Tito Vilanova, who, after dying of cancer in 2014 was superseded by the Argentine Gerardo Martino. Luis Enrique and Valverde followed before Setien was appointed this year. All had little or no credentials of managing at the highest level.

"As long as Barca have a team full of experienced, world-class players topped by Messi, plus the remnants of their Cruyffian house style," Kuper concluded, "a strong coach would only get in the way."