Bouwmeester may be jumping in more, but is still tops in the league for team GA. His defense is still a problem.
Butler last year had a crappy year, now this year Gio is pretty bad.
For as much time as they spend together 5 on 5, Gio's Corsi is almost even where Bouw's is very negative.
The last few years, the pairing of Sarich plus mobile defender worked.
Cool usage charts here:
http://somekindofninja.com/nhl/usage...Update+Results