Yamamoto has bounced back from his poor start. I think Edmonton considers this because Caufield has more ELC time left, but I'm not sure if they would actually do it because of Yamamoto's chemistry with Draisaitl. I think Montreal doesn't because they like Caufield and have no reason to move him.
The Oilers would do this without a second thought.
Ignoring all upside, which is the majority of Caufield's value, he's also two years away from the raise Yamamoto is likely to get next summer. So he's also much better value in terms of cap impact.
Yamamoto's 'chemistry' with Draisaitl has failed to pay dividends for him this far and it may ultimately result in the team moving him in the coming months.
When it comes to Montreal though, I'm not really sure why there'd be any interest there anyways with Toffolli, Anderson, Gallagher and Armia all under contract. The Habs need a center.