When you are 100% sure that you want to delete the team, then complete the following:
Delete a Team
From the stack, select a (A) team. Note that you can select a team from the stack, block, or the Informational Panel.
From the Information Panel, click the Teams tab.
Click the (B) Delete button. The warning message displays Are you sure you want to delete the selected team? This includes blocking, clearing people from the team, and removing the team from any associated scenario plans.
Click the OK button to confirm the deletion.
Delete Multiple Teams
You can delete teams using the Information Panel.
Select either the building or the floor.
From the Information Panel, click the Teams tab.
Select the (A) teams. Note you can select multiple teams hold the Ctrl key + click the different teams OR hold the Shift key and click the first team and then click the last team, which will select all the teams between those two points.
Click the (B) Delete button. The warning message displays Are you sure you want to delete the selected team? This includes blocking, clearing people from the team, and removing the team from any associated scenario plans.