How to give a certain player access to change other players' teams?

For example, there are 12 players in a game. 2 are admins and the others are normal players. I want to give access to admins to like, for example, change the team of the 5 players to blue and the other 5 players to red. I want to give access to admins to add more teams, too. Oh, by the way, I want to put this in a GUI.

To Give Access To Only Admins You Can Do

local admins = {"RazorXX2", "OTHERUSER"}

local player = game.Players.LocalPlayer

if player.name == admins then
	script.parent.visible = true -- make sure it is a local script and script is inside gui frame
end

to make admins make teams you can do

script.Parent.MouseButton1Click:Connect(function()
	local newteam = Instance.new("Team")
	newteam.Parent = Teams
	newteam.Name = " NAME"
end)

i wont answer more as this isnt a request site