But then, I also don't prioritise the RWC to the exclusion of all else; and place a greater emphasis on club combinations, and like-for-like replacement options (and the odd plan-changing option) - oh, and gameplans B through E; not just a, A, A and A
Just thinking on this "If I were England's head coach" I'd probably plan for (and clear with my RFU paymasters)...
2024 6N - I'm not selecting any of the RWC23 first XV for this tournament, they're mentally shot and need a break, just play club level rugby this Spring, we already know what you bring to the team, and can bring you back in if necessary, this is our chance to spread the net wide and look at who else might step up to international rugby. Equally, you guys who were ley to the RWC23 plan - if you want a year or two overseas, you won't get a better chance to expand your horizons. Basing the squad the RWC23 backups, and new blood.
2024 ST & 2024 AIs - I'm not selecting anyone who went to RWC22 - they're physically and mentally shot, so they get a summer off, and a full pre-season. Basing this squad on the new blood introduced in the Spring, and a wider net of new blood from around the clubs.
2025 6N & 2025 ST - Re-introduce RWC23 backup players.
2025 AIs - Re-introduce the RWC23 starters.
2026 6N - Start nailing down the makeup of the RWC27 squad, and laying the groundwork for gameplans that would suit that squad.
2026 ST - the push through to the RWC starts here - time to start putting down markers and making opponents fear us.
Throughout, I'd be happy trying out players slightly out of position... in the last 20-25 minutes of matches, to see how they go if versatility is required (and asking them to try to get some gametime in that 2nd position at club level).
Means that everyone who's been flogged into the ground for the previous 4 years, gets at least 1 summer of R&R and club pre-season. 2 of them if they were the core squad, getting really flogged.
Means that a lot of players would be getting international experience in the first 2 years, but without really dumping them in at the deep end.
Means 2 full years with the expected squad for the next RWC, but with some room for integrations.
Of course, there's always room for a bolter, and for opinions to change.
Oh, and I'd try to keep a coaching crew through the whole cycle (I can see a point in exposing the players to lots of different styles and options, but that only really works if you empower the players to make their own decisions on the pitch - and comes at the price of cohesion).