The Colorado Avalanche made one of those all-in moves when they acquired Charlie Coyle from the Boston Bruins at last year's NHL trade deadline. Coyle cost the Avalanche a pretty penny. The club sent Casey Mittelstadt, prospect Will Zellers, and a second-round pick.
In hindsight, the deal was a bit of a bust for the Avalanche. Coyle played all of 19 regular-season games, scoring two goals and 11 assists for 13 points. He was the 3C the Avs were looking for, despite scoring just one goal in seven postseason games.
Coyle was an unfortunate victim of the salary cap dynamics governing the NHL.