Sorting out the front row is a big priority.
Behind them though I want 2 2 metre tall proper line out operators. I don't really care whether they're wearing 4, 5 or 6 but we need that presence. Chessum's one of those, and if you believe wiki he's virtually the same weight as Etzebeth (not in the same biceps league though). Martin gets away with not being a leaping salmon because he's excellent elsewhere and a proper tough nut - but never seen anything to suggest that Tuima's remotely in the same class.
Right to blood CCS at 6, but I suspect he'll end up at 8 before long. Which isn't at all to decry what Earl's done - he's been mostly excellent over the last year. Just the kind of presence a lot of people (viz me) like at 8 and a balance thing.