Hypothetically, IF we were going to acquire Buff, I don't think minutes would be an issue, seeing as how Byfuglien and Karlsson would pretty much never leave the ice during Powerplays, and Buff would still probably play 22-23mins/night due to Maclean's penchant for using the 2nd pair to act like a 1B pair.
And while we're on the hypothetical topic of "what if we made a pitch for Byfuglien", I'd have no problem including Wiercioch in that deal, seeing as how with Karlsson & Byfuglien hogging all the PP time, Wier would be redundant (unfortunate for him, seeing as how he's young & still developing). If we were ever make a Buff trade, I'd like to see Weir go ASAP, so that his value doesn't suffer due to him not ever being used here. Maximize value before it drops, "sell high", etc...