This is what I question about Hanlon's razor, "Never attribute to malice that which is adequately explained by stupidity/incompetence."

In practice, when such "incompetence" involves millions (of Euro, dollars, etc.) - and those involved stand to gain from it - we ought to scrutinize it as a possible symptom of "malicious competence".

For me, "incompetence" sounds like an excuse or smokescreen, when there are those who profited from it. After all, numerous real-life cases suggest that corruption is endemic, if not inherent, in our institutions of politics, business, and public decision-making process.