How many coaches does an ice hockey team have?

According to the rules of the ice hockey team, the coaching team of an ice hockey team can include head coach, assistant coach, technical coach and tactical coach. The head coach is the head of the team and is responsible for the operation and decision-making of the whole team; Assistant coaches help to complete daily training and competition tasks under the guidance of the head coach; The technical coach is responsible for the technical training and assessment of the players; The tactical coach is responsible for the tactical planning and implementation of the team.