Former Arsenal chief scout Sven Mislintat has branded his old club an "absolute mess".
The Independent reports Mislintat has told people that Arsenal are "dysfunctional and with no clear plan".
The report indicates that Mislintat felt that Arsenal's scouting department was too bloated and attempted to trim it down but was blocked from doing so by Sanllehi.
Mislintat was confused as to why Arsenal later decided to get rid of some of the scouts that he had attempted to axe.
The loan arrival of Denis Suarez, who joined from Barcelona but only played six times for Arsenal, convinced Mislintat to depart.
Mislintat has since returned to Germany with VfB Stuttgart, where he is the sporting director.