........
Can't really say no, because we would upgrade Trouba for very little, but then again... our defense is old. As of now, Trouba is the only U23 defenseman who's anywhere near our top 4. The other problem is his contract which ends after 18-19 season. Just like Wheeler's. Just like Laine's. Myers and Connor too, and that's after we have re-signed Ehlers, Hellebuyck and others... the cap crunch would hit us hard.
Trouba fits what the team really needs in so many ways that it would not make sense to ship him out, even if we got a good defenseman back. But then again, it's McDonagh. I'd do this.
(good luck with your LHD depth after that, Ranger fans)