The Oilers and the Leafs going out shows the problem GMs have with building teams for hockey, and it's because the NHL has two completely different seasons. It's played differently, it's refed differently , etc.. The playoffs are not the regular season in any way.
If you build your team for the regular season, you will be in the playoffs , but you may not do well in the playoffs... but if you build your team for the playoffs, you may not even get into the playoffs. Florida is a perfect example of this. Built for the playoffs, but lucky to be in the playoffs.
** The Jets are not built for the regular season nor the playoffs... a whole different issue.
Hate to say it, but this is why I like baseball. It's the same game if it's the regular season or the playoffs. A strike in May is a strike in October. The game is played the same way and it is ump'ed the same way. If a GM builds a good regular season team , it will be a good playoff team. Sure, you still have to win and crap happens, but all the teams in the playoffs are good and can legitimately beat each other. No one sneaks into the post season and wins the World Series because the umps started to call a bigger strike zone.