One of the most interesting things about the World Cup is the diversity of coaching talent and different approaches that different coaches take.
This year's tournament in Russia will see a mix of experienced tacticians and younger managers. Some have experience in top European leagues, while others have cut their cloth in Africa and Asia.
It will be fascinating to see the mix of styles and tactics and, after five weeks, assess whose stock has fallen and risen.
Here's how RealSport rank the 32 managers at the World Cup: