You can see the blue bars there: he's still good at even strength offense. That's a huge asset.
What he's bad at, he's really bad at. He can be positive player but he needs to be in the right setup.
He worked well with Panarin because Panarin is low-key pretty good at defense. Always was. He has holes but that's not one of them. The Rangers also usually had a defensively responsible player at RW.
That's not something you want to put on the shoulders of Zegras.
He's a good soldier and I think his leadership will be valued on a young team. It's not for lack of trying, he just sucks at certain things. I would put him on a line with checkers.
I think he spent time with Vatrano too, right? That's like taking the two troublemakers in class and having them work together.
That was the issue, Ducks were running a line of Vatrano - Zegras - Strome, was one and done in the offensive zone and then they ended up pinned in their own zone afterwards.
As I said above I think once the Ducks get more depth he will be fine.