Tough job. That phrase comes to mind every time I watch Brendan Shanahan explain his latest punishment via streaming video on nhl.com.

The NHL's new head of discipline looks as if he's aged 10 years in two months. I can see why. In emerging from the Paleolithic Age, the NHL has entered a hypersensitive era in which every questionable hit is broken down like the Zapruder film.

Unless it's a cheap shot as obvious as the one Matt Cooke put on Ryan McDonagh last season, most disputable hits these days leave massive gray area for interpretation.

Somebody is going to be very unhappy with every Shanahan ruling.