Ah, but there is always a guy behind you. His place will simply be taken by another guy. This is how Jumbo Visma got to copy their tactics: during the Tour of 2019, the Ineos rider did as he was told, rode as hard as he could for as long as he could, stopping right before he dropped dead, telling the guy behind him to do the same... but the guy behind him was a JUMBO rider!!!You forget the variation where the guy behind you drpos dead before you.
The only thing they really perfected was blocking the road with the entire team to stop racing even more.
This is how Jumbo was able to decipher the tactical masterplan behind Ineos' dominance. They would never have cracked the code otherwise.