Your played ale house football as a CB then, because the best CBs (and Branthwoate is getting billed as being one or capable of being one) will be a lot more composed when they have time to consider where they can head out to (Ilm not talking about a ball pinging about the box and in need of a desperate head out at all costs, btw).
The best players are looking around and seeing pictures as to the next passage of play. Branthwaite is great at covering tackles and anticipating danger. That's fine. But a lot of his game is dealing with balls into the box and the lad has to be doing more with them than just ballooning them in the air anywhere as long as they get out of the box.