Key questions in determining AV's system of play for the New York Rangers:
1. Forecheck - Keep Tortorella's 2-1-2, adapt a flexible 1-1-3/1-2-2 (delayed forecheck/hybrid forecheck, respectively), or a full-blown 1-4 trap (see Julien's Bruins in the semis)? And will the defensemen be encouraged to pinch to sustain the forecheck?
2. Defensive zone coverage - Will there be more adaptations deviating away from the "Five-in-the-Picture"/"Five-Goalie-System" (Collapsing Box) such as man-to-man pressure of the points, or overloading towards the boards?
3. Breakouts and transition - Will we see more movement (Criss-cross and/or Regroup of skaters) exiting the zone instead of always stretch passing and then chip 'n chase in the offensive zone?
4. Establishing puck possession - Who gets the majority of the important faceoff draws (Richards & Brassard in the offensive zone, Stepan & Moore in the defensive zone)
(I stumbled upon this site recently, and this provides a chock-full of common hockey strategies while shining a light on the coaching arcana that the fans tend to overlook:
http://www.blueseatblogs.com/hockey-systems/)