If you would like to see who is being used in which capacity (quality of competition and zone starts) and see resulting Corsi (differential of shots for compared to shots against, per 60 min), you can see it here. Blue circles are positive Corsi, red are negative. Circle size reflects magnitude of Corsi.
http://somekindofninja.com/nhl/usage...Update+Results
Special bonus is that the site also has a shot tracker. Ever wondered where Iggy scores his goals 5 on 5 and on the PP? Cool site.