Colossal Meltdown for GW Any time you blow a 20 point second half lead, it makes for a particularly ugly loss. GW’s 74-65 loss to USC in the John Wooden Classic on Saturday qualifies as such. This one was just plain nasty. Two minutes into the second half, GW held a commanding 36-16 lead against their counterparts from USC. Up until that point, the Colonials had played sparkling defense, protecting the basket while forcing the…