I find the article quite shallow. It throws around many examples of injustice but only offers a vague "hold prosecutors accountable" solution. How to hold them

I find the article quite shallow. It throws around many examples of injustice but only offers a vague "hold prosecutors accountable" solution. How to hold them accountable? How to solve the "who watches the watch men" problem in a democratic friendly way? An obligation to transparency would be a important step but maybe also an extension of criminal conduct by officials. The reason why you cant hold officials accountable is either you cant prove it or its not illegal. Overprosecution, like the article says (without mentioning trump) should not be actionable because you dont want anybody to interfere with a fully transparent executive/judicial process.