The operational team can only work with what they have been given, a marginal orebody already depleted of the easy high grade ore, a mining fleet and contractor, and a mill that is falling apart in front of their eyes and a tenuous financial situation that prevents expensive corrective actions to fix any of the aforementioned.
I think it's fair to say that past and present management and their choices put them in that position. It wouldn't be fair to blame all the problems in CDU on the people working in Cloncurry right now.