But at a certain level, coaching and team cohesiveness, complimentary skill-sets and lack of injuries play a leveling role.

FORBES: Big Payroll Doesn't Guarantee Big Payoff

But the biggest reason may be the growing consensus that coaching at club and international level require vastly different skill sets.

WSJ: Roy Hodgson to Coach English National Team: England's 'Second Choice' Gets His Chance

The partnership with UNESCO will focus on 180 youth-led projects in Africa, aimed at skill-building, as well as providing access to professional networks, coaching and mentoring, financial resources and advocacy opportunities.

UNESCO: "How Youth Drive Change" - UNESCO Youth Forum 2011