Not trying to overreact, but two defensemen whose minutes need to be cut down are Giordano and Hamonic. Gio's not young anymore and Hamonic's not a top 4 anymore (and even on the PK he tends to screen his goalie too often). Put Hanifin on PP1, have Andersson QB PP2, and have Andersson paired with Hanifin 5v5.
Forwards wise, I didn't necessarily hate anyone's play, but I think Dube's point production the last handful of games has been a mirage and he's been struggling to consistently generate chances. I also feel Frolik, despite his hot streak, has been riding Reider's elite speed rather than driving that line. I would sit those two next game and get Czarnik and Bennett both in. And until he gets some confidence going with a nice bounce, I'd probably bump Backlund down the lineup.
So something like
Tkachuk - Bennett - Czarnik
Gaudreau - Lindholm - Mangiapane
Lucic - Ryan - Monahan
Rieder - Backlund - Jankowski
Giordano -Brodie
Hanifin - Andersson
Kylington - Hamonic
PP1
Hanifin
Gaudreau - Bennett - Lindholm
Tkachuk
PP2
Kylington/Giordano
Monahan/Mangiapane - Czarnik - Andersson
Lucic
PK1
Giordano - Brodie
Jankowski - Lindholm
PK2
Hanifin - Andersson
Rieder - Ryan
PK3
Kylington - Hamonic
Backlund - Bennett