How to identify players who will succeed in the NHL?

Question

Skating Mobility -

Quickness, Foot speed, Agility (Lateral), Strength & Balance, ...

Hockey Sense -

Makes good play, takes good hockey decision, relaxed, good-excellent on face-off, ...

Puck Control -

Receiving a Pass, Making a Pass, Stick handling, Controls the Play - Makes Def. Make1st. Move, ...

Play Away Offensively -

Position, Run Interference, Spectator, ...

From Puck Defensively -

Anticipation, Positional Sound, Transition Game, ...

Shooting -

# of Shots (Backhand, Wrist, Slap), Eye Hand (Make Something out of Nothing), No. of Goals (Accuracy), ...

Physical Game -

Proportion (Upper & Lower Body), Stamina & Cardio (Over Game), Body Checking (Gains Puck), Quiet Checking (Knocks Player off Puck), In Corner/Front of Net (Position - Upper Body), Taking a Hit, Fighting, ...

how could you tell whos good and whos...

Answer 1

You just covered everything to tell if they are a good hockey player or not.

Answer 2

you watch the player play the game, and make assesments on all those criterias. some players are late bloomers, so they may not have the padded stats, but that doesn't mean that they won't grow into becoming a better athlete.