The NHL is always evolving, and not all changes are met with the same enthusiasm. This ranking dives into the most impactful and debated alterations to the game, from the ever-present salary cap and its ripple effects on team building and parity, to the more recent introduction of jersey advertising. We'll explore which of these major shifts have genuinely improved the league and which have fallen flat, sparking fierce discussion among fans. Get ready to debate whether these changes have truly elevated the sport or simply altered its fabric in ways we're still processing.