CREATE TABLE table_66519 ("Original NFL team" CLOB, "Player" CLOB, "Pos." CLOB, "College" CLOB, "Conf." CLOB)

What conference did the player originally from the denver broncos play in?
SELECT "Conf." FROM table_66519 WHERE "Original NFL team" = 'denver broncos'
SELECT "Conf." FROM "table_66519" WHERE "Original NFL team" = 'denver broncos'