When Marshall Lamm was growing up in Dallas, soccer was considered little more than the waste of a football field. So years later, when Lamm became a fan of the English Premier League, he had no idea how to pick a team for which to root.
"In England, if your dad was a West Ham fan, your grandfather was a West Ham fan, every family member is pretty much a West Ham fan and you don't really have a choice," he said. "But over here you can be a fan of any team."
So after giving the matter some thought, Lamm used the Six Degrees of Preki formula to determine his allegiance.
Preki, a former U.S. national team player and Chivas USA coach, once participated in...