The key is to identify the guys early enough that you want to invest in. For instance I bet we could have TDA on a much more affordable long term contract last offseason - now it's too late. Same with Buch. The bridge deals really don't let you keep a player long term once FA comes around.
Yes, you can get in trouble this way too, but like with Skjei or eve Tampa with Johnson or Killorn, it's not like there won't be takers when the player is young. The cap trouble comes later when it's guys like Staal or Lundqvist.