Peter: Given that Tommy Wingels played in Game One, I think we're likely to see him back for Game Five if Pyatt is indeed out (as I suspect he will be). One thing I'd like about seeing Wingels is his physicality; the Bruins' blue line is inexperienced and guys like Chara and Liles have been playing a lot, so it's been a little frustrating to see so many fly-bys where Sens forwards passed up hits. Wingels likely wouldn't do that, and it could lead to good things for Ottawa.
That said, Dzingel's speed has been a huge weapon for Ottawa, and he's had great chances since coming in.