From a Penguins point of view, I love this.

(Jake aside) the wingers might be shuffled around in the top 6.
Simon and Horny on the wings of Carter would be incredible, their high Puck Position stats would give Jeff every chance of putting up 25+ goals again.
4th line Gritty and hard to play against.

McCabe is a massive upgrade on JJ and $2.4 seems like a reasonable value for bringing Pettersson back.

Buf trade I think is possible. heard they're in the market for a Center so Bjugstad fits the bill, picks might need adjusting but in principle think the trade could be worked out.

LA trade... the cap retention on the longer JJ contract makes it easier to take for LA but I'm not sure they'd be willing to take him back even with the lack of LD they have. I think a top prospect (which the pens don't have many of) may be required to make that work maybe JPO or Hallander, I'd like to keep both given the lack of prospects. even with an included prospect, I'd be tempted to gamble on the trade.

would be keen to hear what LA and Buf fans think of the trades.