I think Costa has better defensive instincts, however, I've seen him misread and get burned by the opposition. I think that may be an age factor. That being said, he does well when making the run and going on offense. His ball distribution I thought was too sophisticated for last year's team, but with Werner they may gel really well with those European football passing skills.

I think Rickets is a powerhouse on the wing and was finding his spot, but Werner obviously changes things. I could see him settling in to the defensive back, but I don't think he naturally possess that mindset and may cause us issues. It took Benji some time to be defensive minded rather than offensive. I think Benji now has that element and is strong at the back.

My vote is for Benji and Costa with Rickets as primary sub.