What are the current rules for adding players to "established" MLS rosters? Is there a trading deadline? I get the sense, that if a player's from your A-League affilate, you can almost add or drop him as needed. C'est vrai? What's the procedure for DC to acquire a Gaza or LA to that Korean national teamer? A "discovery" allocation? Did the Crewe "discover" Garcia? Did DC discover the El Salavadoran guy? What is Colorado's signing of Musa Shannon termed? Could an MLS team discover a Nelson Akawari or an Alex Yi right now, or do they have to wait until next year's draft?