Revealing mistake: When Paolo tells Patrizia "I do have something on my father", you can plainly see the separation between the frowned forehead of Jared Leto and his "bald cap" prosthetics. (01:15:30)
Revealing mistake: When Maurizio has a water fight with one of the truck drivers, above the logo of the fictitious company "Corriere F. Reggiani" on the window of the truck you can see the logo of "F.lli Zucchetto", (Zucchetto Brothers) the real company owning the truck, who organizes real life gatherings of vintage truck owners. (00:22:50)
Revealing mistake: Maurizio tosses on the table the newspaper with the article about the new "P.G." brand launched by his cousin Paolo. The article itself is a copy/paste of the same paragraphs repeating a bit of history of the Gucci family and brand. (01:11:05)
Answer: Yes. Basically, within the narrative of the film, Maurizio is weak-willed and easily manipulated by Patrizia; he didn't even want to be involved in running Gucci in the first place and has no real business acumen. So, he both overextends the firm and spends a huge amount of money on an extravagant lifestyle, which leaves him in financial trouble and at the mercy of a hostile takeover.