I disagree. don't think they are chasing Havertz unless they move firmino. I assume here that Havertz will cost maybe around 100m. If he cost 40 m then we won't have this conversation.
But let just say pool sign Havertz, he will be asked to provide creative contribution plus he need to run like a workhorse and keep their defensive solidity. Does he has the stamina and workrate to do that. If he can't do that then klopp need to change his system to cater havertz.
Play less direct? Made no sense since his two star player thrive in direct game.
Ask his two fb to play more.conservative. Again make no sense since they are too good to do that.
Play Havertz in easy game, if your 100m is just part player, you are crazy.