An idea I see floated occasionally but not occasionally enough is Nikorima to Fullback. He played quite a lot of Fullback in his NYC career, and was very dangerous.
I can't think of a reason why we shouldn't do that, it'll add an extra element to our attack with his speed & ball playing on those sweeping plays on both sides of the field, his defense can't be any worse than Boyd's, so we can just chalk that up as a net break even.
It'll also obviously allow us to give O'Sullivan a chance at 7, who has been quietly the best of the 4 young halves in the ISC with his kicking game from the highlights and stats I've seen. Put Boyd on the right wing if we have to keep in the team, Isaako needs a break to go play 80 minutes at Fullback in QCUP to get his confidence back anyway. Hopefully by the time Isaako has hit his straps in QCUP we can just move him straight in to Fullback, unless the Kodi experiment is working unbelievably well.