I'm 100% certain that we start with Tarkowski & Branthwaite at CB next season, if Branthwaite stays.

O'Brien has excelled at rightish-back, gives us extra height and cover as well as doing well pushing on.

Then get a new right-back in (Walker-Peters?) who can come in with O'Brien moving over when needed and for the longer-term.

I'd expect Mykolenko to start too, unless he finds a real bargain somewhere.