One can be "for management" and still allow that they make mistakes. Selling Vidal was a mistake. Not working harder to keep Morata and spending 90 mil on Higgy is a lesser mistake, but still a mistake. Buying both Costa and Bernadeschi (when we already have Mandzu, Cuadrado, Pjaca as wingers) was probably a mistake. Imo we should have just bought Bernadeschi. A backup for Dybala and rotation with Cuadrado. Or just Costa if we wanted someone who could play both wings.
Regardless, the management has built us into Italian dominance and perennial CL contenders after Calciopoli and then two 7th place finishes. They deserve trust and the benefit of the doubt until we actually see a decline due to their high-turnover strategy. Criticizing individual moves is just fine and dandy, criticizing their overall body of work is just grotesque.