NBA head coaches may have one of the toughest jobs in sports.
They need to coach some of the world's most highly paid, well known and egotistical sportsmen to a championship-winning standard.
When their team wins a championship, the players take the majority of the credit. When their team loses or plays badly, the coach takes a lot of the blame for poor strategies and decision-making.
That said, there are some coaches who go far beyond just being "bad." Some coaches struggle to even have an impact on their team's performances and some, it could be argued, hold their teams back.