NHL:Avalanche Acquires O'Byrne

Question

why Avalanche Acquires O'Byrne?someone tell me?

Answer 1

The Colorado Avalanche Hockey Club announced today that the team has acquired defenseman Ryan O’Byrne from the Montreal Canadiens in exchange for forward prospect Michael Bournival.
O’Byrne, 26, has skated in three games for the Canadiens this season, tallying no points and four penalty minutes.  The 6-foot-5, 234-pound defenseman was Montreal’s third-round pick (79th overall) in the 2003 Entry Draft.  He dressed in a career-high 55 games during the 2009-10 season (1g/3a) and also appeared in 13 of Montreal’s 19 playoff contests.