The document discusses models of team development and dysfunctions that can inhibit teams. It describes Tuckman's stages of team development as forming, storming, norming, performing, and adjourning. It then explains Lencioni's five dysfunctions of a team as the absence of trust, fear of conflict, lack of commitment, avoidance of accountability, and inattention to results. Cohesive teams are said to trust each other, engage in open conflict, commit to decisions, hold each other accountable, and focus on results.