definitely scouting and film breakdown. the rest depends on what level your coaching, 1a-5a. bigger schools and bigger districts usually mean that you probably won't have to mow or do laundry. you might have to do bulletin board updates. depending on the staff you might end up the computer guy. once football season is over you'll have to help out at track meets, or other sports not to be mentioned.
The 1972 Miami Dolphins lost one game, it was an exhibition game vs. Chuck Norris and three seven year old girls. Chuck Norris won with a roundhouse-kick to the face in overtime.