Since Detroit declared bankruptcy on July 18, the city's crippling problems with corruption, unfunded benefits and pension liabilities have gotten the bulk of airtime. But equally at fault for its fiscal demise are the city's management structure and union and civil-service rules that hamstring efforts to make municipal services more efficient. I would know: I had a front-row seat for this dysfunction.

Last year, I served as chief operating officer of the Detroit Department of Transportation. I was hired as a contractor for...