 Teams and groups have established a synonymous relationship within the confines of processes and research relating to their effectiveness (i.e.group cohesiveness, teamwork) while still maintaining their independence as two separate units, as groups and their members are independent of each other's role, skill, knowledge or purpose versus teams and their members, who are interdependent upon each other's role, skill, knowledge and purpose.There are six different team effectiveness models including Rubin, Plovnick, and Fry's GRPI model, the Katzenbach and Smith model, the T7 model, the LaFasto and Larson model, the Hackman model and the Lencioni model.