Teams and teamwork are not the same thing. Teamwork is cooperative behavior. Teams are a social structure. Teamwork can exist independently of teams. Leaders should not confuse wanting good cooperation and collaboration with the creation of teams.
Organizations can have high levels of teamwork and no teams.
Similarly, organizations can be filled with teams that exhibit few of the behaviors considered to be teamwork. Teams can become possessive, exclusive of outsiders, resistant to influence and information, and fractured by cliques. A well designed team will promote teamwork among its members. A well designed organization will promote teamwork among its teams. Let's see what contributes to building strong teams.