Bruce Mathieson says the departure of Michael Voss is not enough to fix problems at Sydney FC. Across reports, Mathieson—described as outspoken and a significant figure within the club—argues that further structural and operational changes are required, particularly within the club’s football department. The coverage describes Mathieson’s view that the department is not functioning to the standard expected at a club that has historically been among Australia’s more successful teams. While the articles note that Voss has left his role, they present Mathieson’s comments as a call for additional changes beyond the existing coaching turnover. The reports do not specify detailed proposals, timelines, or personnel changes, but they consistently frame Mathieson’s remarks as an escalation of his criticism and a demand for broader reform. Overall, the sources agree that Mathieson is urging more extensive action at Sydney FC, with emphasis on the football department, following Voss’s exit.