In everyday employment, it’s generally a red flag when an employee is fired one or more times in their chosen profession. Sometimes it’s due to weird or extenuating circumstances, sure, but hiring managers would at least raise an eyebrow at these candidates.
This, however, does not apply to head coaches in professional sports. In fact, the opposite is often true; the best candidates are often the ones that get fired, and it’s almost impossible to find a coach that hasn’t been booted from a previous team at least once. Look no further than Andy Reid, who was clearly the best head coach on the market in 2013 despite being unceremoniously thrown out of an organization in which he built up a considerable amount of goodwill.