Can promotion and relegation work in US soccer?Grant Wahl asks a number of MLS coaches and executives for their thoughts on promotion an relegation in US soccer.SI Staff|Share on FacebookShare on XAdd us as a preferred sourceGrant Wahl asks a number of MLS coaches and executives for their thoughts on promotion an relegation in US soccer.Add us as a preferred source on GoogleFollowLoading recommendations... Please wait while we load personalized content recommendationsPublished Mar 1, 2016 | Modified Mar 1, 2016SI STAFFShare on FacebookShare on XHome/Soccer