The worldwide game has made it tough to compare managers from different continents.
With the quality of competition much higher in Spain than, for example, Saudi Arabia, how do we differentiate between the different achievements and varying trophy cabinets each coach can boast?
We developed a simple metric system that converts trophy wins into points, and the top managers, by trophy haul, became clear.
The shortlist started out 81-strong—featuring the likes of Bruce Arena, Artur Jorge and Abel Braga—and was whittled down to 50.
The metric ranks different competitions in order of their level of prestige, number of clubs involved and competitive playing level. Winning the FIFA World Cup scores you a colossal 10, a major domestic league four points and the Charity Shield a paltry 0.5.
Any club or national achievement is counted, while individual awards are not. If you see a "T" before the rank, it means the scores are level and the players are tied.