CREATE TABLE table_31777 ("Pick #" FLOAT, "MLS Team" TEXT, "Player" TEXT, "Position" TEXT, "Affiliation" TEXT)

What position does the Colorado Rapids pick after 15 play?
SELECT "Position" FROM table_31777 WHERE "MLS Team" = 'colorado rapids' AND "Pick #" > '15'
SELECT "Position" FROM "table_31777" WHERE "MLS Team" = 'colorado rapids' AND "Pick #" > '15'