I do think that a "hard running" 12 is a good fit for most teams. It does mean that if we had such a player, we'd need to think about who will be providing the alternative to the FH. Currently, this has been Jimmy with the aim to have the harder runner at 13 (Fekitoa) or wider in Odogwu.
So if we did have a power 12 to provide options ball in hand as a decoy for wider players, we would need to think how we use a second distributor and who that might be.