1) This is part of a winning sports photography portfolio because typically the team celebrates their victory by pouring water or Gatorade onto the coach.
2) Shutter speed is a setting on a camera to either slow down or speed up the amount of light a camera lens can process. Shutter speed is used manly to capture quick movements.
3) I suppose this a key moment if the team just won state.
4) This is the probable outcome of a win.
5) Some photography techniques in this picture are rule of thirds and depth of field.