Tough to rely on a system to win a Cup. EDM found something in their system they can beat and they are. This isn't fatigue, this is the Oilers making adjustments. So, far Maurice has fallen back to who he is and it stressing playing their system better. To him, that is the answer.
There are coaches that say "this is who we are, beat us" and everything relies on playing the system better, winning one on one battles or a G standing on his head. IMO, that is who Maurice is. He is not making adjustments, he may tweak a line, but he and the Panthers are who they are. They will win or lose with it. Nothing wrong with it, John Cooper is like that too. He plays his system, period.
Knoblauch strikes me more of a tactician and looks for areas to exploit and will make changes to do that. They found something in the Panther's system and they are abusing it. If the Panthers stand pat, be prepared for a replay of the last game.