DM comes and goes on the defensive end and its understandable. Bojan has had some bad moments. It makes sense... I would not say Bojan is the worst defender on the team... I think that honor goes to Niang or Green.
I'd say Niangs probably the worst. Mitchell is frustrating because we've seen flashes of him being really good defensively and he has all the tools physically to be able to defend but he just doesn't do it consistently. He obviously uses a lot of energy on the offensive end so I'm sure that factors in as well.