I would be fine with trading ANYONE, as long as it's a good trade for us in the long term. That includes Fiala, and Brodin. I do agree that Fiala, in general, is the sort of player we want to keep around. I would be very sad if Brodin got traded, but if it were for something like a Zegras+ I'd reluctantly live with it.
Staal and Parise (among others) haven't been playing well recently, but I sure hope that Guerin isn't like most posters here, and doesn't only consider the past 20 gp when evaluating players.