Tactics guide
Give every line a coherent job.
Tactics work best when they fit the players available and solve a specific hockey problem.
Choose an identity, not every advantage
Aggressive pressure can create recoveries but costs energy and space. Passive structures protect space but concede initiative.
Match tactics to personnel
Fast forwards support pressure and transition ideas. Strong defenders can protect the slot, while mobile defenders improve exits.
Treat special teams separately
Power-play and penalty-kill units face different problems from five-on-five lines. Build and evaluate them on their own terms.
Change one thing at a time
Use replays and statistics to form a hypothesis, make a focused adjustment and observe several matches before judging it.