Team gui, Auto checks. Any help? [Still not working]

I have a script that goes inside a textbutton and its suppose to remove the text button from your screen if your team color is any other color than medium stone grey. But its not working.

Here is my script:

local gui = script.Parent
local player = game.Players:WaitForChild("LocalPlayer") 
local clonedGui 

Check = function(propertyChanged) 

if propertyChanged == player.TeamColor then  
        if player.TeamColor == BrickColor.new("Medium stone grey")  then
            gui.Visible = true 
        else 
            gui.Visible = false  
        end  
    end  
end  
Check() 
player.Changed:connect(Check)