Dubas wasn't the first GM who has traded a 1st round pick to get rid of a contract for cap relief.
Lou Lamoriello did that before the 2005-06 season when he was with the Devils, because he traded Vladimir Malakhov and a conditional 2006 1st round pick to San Jose, so New Jersey was able to get under the cap and re-sign Brian Gionta.
The 1st round pick ended up being the 26th overall pick in the 2007 draft and San Jose used it to move up and select Logan Couture 9th overall. The Blues who traded down with them used the 26th pick and selected David Perron.
Cap call: Devils deal Malakhov to Sharks