Start slow and walk defensive players through movement of puck through defensive zone.
Start in corner and pass behind net to other corner then to point, D to D and deep again.
At each movement of puck show where each player on the defending team should be and should be looking for.
Each cycle around change it up a bit.

Increase speed with repetition.
Switch players from offensive to defensive teams.

Tags: Defensive positional coverage., Work on eliminating puck chasing.