By Mike Schwartz

It was 2003, or maybe 2004. A home game at Augsburg. I don't remember who we were playing. I remember everything else.

My top three lines were off. Not hurt, not overmatched — just flat, the way a line gets some nights for no reason anyone can name. We were behind, and getting worse.

So I did something I wouldn't have done on a normal night. I put my fourth line out again. And again. They were flying.

They didn't just hold the puck deep in the other end. They changed the whole feel of the game. Our bench came alive watching them play. So I kept going back to them, shift after shift, well past what anybody would call normal rotation. My best players sat and watched other players win the game for our team.

We won that night. And we won it because of the players I wasn't supposed to be playing.

I stopped trusting the lineup card and started trusting my eyes.

If I had coached that game by the numbers, I never take that risk. The numbers said my top players were my best players. They were, most nights. That night, they weren't, and no spreadsheet built before the puck dropped could have told me that. The only thing that told me was watching it happen in real time.

That's the trouble with data. It's always a report on what already happened. It cannot see the hot hand. It cannot feel the shift in a bench, or the moment a fourth-liner decides tonight is his night. By the time the numbers catch up to the truth, the game is usually over.

That doesn't mean data is worthless. Far from it. Track a player's development over a season and it can show you things you're too close to see. It can hold up an honest mirror when your own eye is playing favorites, or missing a weakness you'd rather not admit. Data is a service when it helps you reflect. It becomes a disservice the moment you let it replace judgment in the moment the game is actually being played.

Nowhere does this matter more than in youth hockey.

Most youth associations mandate equal ice time, and I understand why. Every kid signed up to play. Every parent wants to see their kid out there. But equal ice time, applied blindly, can put your weakest skater out against the other team's best line at the exact wrong moment of the game — and it can just as easily bury a kid who has earned more shifts that night, playing the game of his life, sitting on the bench because the stopwatch says it's someone else's turn.

I don't believe in equal ice time. I believe in fair ice time.

Fair means every kid plays, and plays enough to develop, to feel like part of the team, to keep loving the game. It does not mean every shift is interchangeable regardless of what's happening on the ice. A coach still has to watch, still has to read the game, still has to make the call that the data — or the roster rule — didn't anticipate.

The box score from that night at Augsburg wouldn't have meant anything to anyone the next morning. It can't show why I rode that fourth line, or what made me trust it. Only I know that: I'd stopped trusting the lineup card and started trusting what I saw.

The data would have kept my best players out there all night. My eyes told me something the data couldn't.

Mike Schwartz is a USA Hockey Coach Developer and former NCAA Division III head hockey coach. This is one in a series of articles for coaches and leaders, inspired by more than 30 years behind the bench.