Gillman is best known for helping develop the deep downfield pass that helped make football the game it is today .
Under head coach Sid Gillman , the Redskins compiled a record of 31 -- 6 -- 1 .
head coach is best known for helping develop the deep downfield pass that helped make football the game Redskins is today .
Under head coach Sid Gillman , the Redskins compiled a record of 31 -- 6 -- 1 .