The current code is making a brand new instance of the command every time any of the button is pressed. It would still work the same if the command were only initialized once and then assigned to the button. This way it's not making brand new instances every time a button is pressed it just reusing the command that is already there. This would require you guys to make a small change to the commands. Not sure who wrote these commands but they should be calling other methods from the execute() method instead of the initialize() method.