When the premiere (realistic) talents in UFA are buys like Bunting and Zucker, I don't think cap space really f***in' matters all that much tbh.
Maybe they can throw an absurd contract at somebody like Meier or Bertuzzi if they hit UFA, but there's gonna be a bidding war for those guys and a team in the Pens' position is gonna have to bump up the AAV or term even more in order to lure the biggest fish on the market to Pittsburgh.
As for the whole Hellebuyck or Saros stuff; I don't think the 14th overall and a guy like Ty Smith, or a C-tier prospect like Poulin is gonna get it done.