He will , at times , trade that smile for a scowl when the Wild open training camp on Friday at the Xcel Energy Center .
As the fastest NHL coach ever to reach 400 wins , Boudreau also knows when it 's time to get serious .
Boudreau will , at times , trade that smile for a scowl when the Wild open training camp on Friday at the Xcel Energy Center .
As the fastest NHL coach ever to reach 400 wins , Boudreau also knows when it 's time to get serious .