Brotzu's administrative director, Antonio Guerrieri, has come under fire from the unions. One attack comes from Fedir, which represents the management. The other from USB, on behalf of the workers.

The first attack concerns the statements made by Guerrieri to explain the reasons behind the resolution by which Arnas decided that he would provide his services without compensation. The retired former finance officer stated that he accepted "because I realized that Arnas Brotzu (...) needed a thorough overhaul of its internal administrative procedures, which still hinder and often undermine the work of its top-level healthcare professionals." This statement was not well received: at Brotzu, Fedir writes, "administrative and technical managers with proven and specific experience within the regional healthcare service, who are well versed in administrative procedures, work daily in the difficult task of balancing compliance with the complex and cumbersome regulations currently in force with the need for speed and expeditious administrative action. "We cannot say the same," is the attack signed by the union's regional secretary, Daniele Maria Agulli, " about the proven and long-standing experience of the administrative management in the national health service, considering the specific field of activity carried out previously."

Fedir therefore asks "to explain the specific critical issues that have emerged in the administrative procedures in the Arnas "that hinder and often undermine the work of healthcare workers" and what solutions" Guerrieri "intends to adopt, also in light of any specific skills and experience he has already gained in the healthcare sector."

USB, led by Gianfranco Angioni, is instead targeting the operating instructions issued by Guerrieri to all internal departments that adopt resolutions, which must be vetted in advance: "While recognizing the importance of formal accuracy in the documents," a statement reads, with serious repercussions on the operation of services, work organization, and personnel management. Indeed, similar situations are encountered every day, with procedures subject to avoidable delays and complications, demonstrating that the critical issues are not isolated but systematic."