I think they need to shake up the bottom 6. Top two lines have looked good for most of the series, but our depth forwards have been getting outplayed by their depth forwards which really shouldn't be happening. Richards should really be on the 4th line and Beagle has played well enough to be on the third line.
Maybe something like:
25-90/83-83/90
26-10-43
I wouldn't mind putting Chimera on the 4th line either, he's been invisible this series. The problem is I don't know if either Winnik or Chimera can play RW. Wilson has been better than both of them so it wouldn't be a terrible idea to put Wilson on the third line either, but I'd prefer Beagle get the promotion first.