The point Jarta is making is you don't get to renegotiate the deal once a plea agreement has been reached with the prosecutor.
You don't get a second bite at the apple by claiming that your attorney stiffed you in the first deal that was struck and you don't get to say time out I have more goods to offer up and I want a better deal.
That said the subject is moot. It appears that the prosecutor requested that change in attorney, the defendent didn't protest and everything was filed under seal.