Schottenheimer has shown signs of potential and as a Cowboys fan I will root for him to succeed, but he seems to do the same thing McCarthy did which was leave people on the field who are not performing well.
To his credit, Schottenheimer is an offensive coach and he not only correctly pick Javonte to start, he also shifted from a planned running back rotation to Javonte as primary and only replaces him for breathers. He also moved on from Tolbert which is really impressive considering Tolbert was not a bad receiver but it was clear he had hit his ceiling with the Cowboys.
On defense, it may be a situation where he's leaving those decisions up to Eberflus out of respect for a former head coach, but he needs to learn this is his team, not Eberflus' team and he is responsible for the team's performance, not just that of the offense.