This is IT specific, in fact, you actually have to run powershell scripts over an admin console in 0365 to prevent to creation of teams by anyone in the organiz

This is IT specific, in fact, you actually have to run powershell scripts over an admin console in 0365 to prevent to creation of teams by anyone in the organization, doing so also prevents the creation of groups in outlook, and plans in planner, as they are all back ended to the same place.