I would either run this (maybe swap McCann and Hornqvist, move ERod to 3C as you said) or
Zucker-Crosby-Guentzel
Marleau-Geno-Rust
McCann/ERod-Hornqvist

And (ideally) play Riikola over JJ... But we all know that ain't ever gonna happen...

Personally not a fan of Marleau in the top 6. He can still skate but he did not seem to have enough scoring touch left. I dont mind Guentzel on the right but i loved what the Guentzel-Geno-Rust line showed. And ya Riikola would be preferred but JJ's style may be a benefit for the playoffs(he says with some hope)

Sullivan already said two weeks back, he is going to play:
Guentzel Crosby X
X Malkin Rust
X McCann Hornqvist
ZAR Blueger Tanev

The only real questions are those Xs....

Last year they benched JJ over Riikola and it was a mistake. There really is no arguing that. Riikola had an awful game.
But that was against the NYI and they are a much heavier team than MTL.

Do you have a link to him saying this? I'd like to check that out

Hey here’s part of it: https://www.dkpittsburghsports.com/2020/05/15/penguins-jake-guentzel-mike-sullivan-sidney-crosby-coronavirus-dwm/

The other one was earlier, he was talking about how he runs guys in pairs then likes to rotate the 3rd guy depending on need/performance

Seems very Sully-like to run in pairs. I like that aspect of his coaching a lot. Solid read, thanks for the link!