I think we effectively have 2 choices, play Howe as a pseudo CHB (which is not his natural role), or allow Howe to ease into the season given his interrupted pre-season by playing that intercepting 3rd tall role, which means Kelly plays lockdown instead.
Could go either way, but I think option 2 is clearly the more logical choice.
And if Kelly doesn't play in one of our weakest positions when Roughead, Dean and Kreuger are all out (plus Howe is underdone), then why is he even on our list?