McDonagh is a lot of what we need, even at his age. He's not ancient, only about 6 months older than Petro. He's also a significantly better defenseman today than Mikkola will likely ever be. If we can get that upgrade for a bottom 6 player (which we have replacements for) and a 3rd, yeah absolutely do it. My only concern is the salary in his 3rd year is pretty high. I think his first 2 years here, he'll be fine. But the 3rd season, he'll be 35. The last season his salary is low and probably an easy dump. Our forward depth and his high stock after a good offensive year makes Barbie an easy sell-high. At this point last off-season, Barbashev and Mikkola for a healthy McD would have been a no-brainer. Still is, IMO.
Scandella is probably a non-starter for them.