I agree, a good player is a good player regardless, but I'm not so sure the system can change, watch the eds and youth team games, they play the same side to side at the back and look for a pass through the eye of a needle game that the senior team plays.
This tactic or system or whatever you want to call it, has worked a treat for us for a good few years now, but no tactics stay the same, teams have cottoned on that a low block will counter our tactic, yes we have the lions share of possession but its being found out