He should be centering Joshua and Garland to be successful probably with Blueger sliding down. Its extremely rare to get a successful top line deadline rental unless its a complete lunchpail supporting type a la Barbashev. Only one I can think of in recent memory was Stone and Hossa way before that for the Pens. Looking at the most effective forward TDL acquistions going back-
Barbashev
Lehkonen
EStaal (as MTL 4C)
Coleman/Goodrow
Hagelin
theres a very clear type of forward/role that can be acquired at the deadline and have a playoff impact and Lindholm doesn't really fit the profile the way he is now. If I was Vancouver I'd have rolled the dice on guys like Greenway, Henrique, or try to get Coleman for the same type of package or a small plus on top
If the argument is that Lindholm disrupted the Canucks chemistry (certainly not an argument I would make) this is the exact opposite of what he should be doing. That's the only line that has been consistently good all season.
The entire team is struggling, except Miller who is single-handedly keeping them in these games, and Lindholm is no exception. I don't know the baseline though; I simply haven't seen him enough. He was fairly good the first few games but has been quiet these last 6-7 games. That being said, he is still very clearly defensively responsible, good on PK, and excellent on the draw. Make no mistake, this team would be doing just as bad, if not worse, with Kuzmenko in this stead (I still love you Kuzmenko).
Mikheyev hasn't scored in months, Hughes is clearly tired, Pettersson is Jekyll and Hyde combined into one, and Joshua getting injured has mostly neutered the 3rd line. There are several issues and I wouldn't argue Lindholm is anywhere near the top of that list.
I haven't even mentioned the biggest issue: Soucy is injured. This team is completely different with Soucy. They're orders of magnitude less structured defensively when Soucy is out of the lineup. Part of that is his replacements, while good (shout out to Juulsen), are simply much worse players but another part is Soucy fits the system to a tee. He's Tanev in 2020 and, despite the plethora of super stars on the team, seems to bring way more to the table than his name would suggest.