Yeah I hadn't thought about that until I read your post, but it definitely looks like a pattern. They brought in a French-Canadian star in Drouin as well, so maybe they are trying to change the culture in the locker room.
It could also be a coincidence though, or economics. Markov is about done. Emelin is probably only capable in a reduced role. Radulov was UFA and got a huge contract. Sergachev was traded to replace Radulov's production. So instead of Radulov, Markov, and Emelin at about 14-15 million they have Drouin, Alzner, and Schlemko at about 12 million. They have cap space to make a big move if one ever becomes available.
I don't think Drouin was acquired to replace Radulov. They tried hard to re-sign Radulov up to the point that he signed in Dallas. I think they just traded for Drouin because when a player like that is available, you go after him. IMO, this was the best move of the offseason for any GM. Sergachev was a really good prospect (I thought he was better than Theo but less than Montour), but Drouin is a guy who creates a lot on his own. When there's a young, dynamic player like that available, you go get him.
Their D has significantly downgraded IMO. I don't blame them for not wanting Markov at 2 years, but 1 year? That's a no brainer (assuming their cap space won't be used on something else).
Out on D: Markov, Beaulieu, and Emelin
In: Schlemko, Alzner, Morrow
That D is worse and a lot slower too.
In my line of work, I deal with a lot of Candian fans, especially from Montreal, and I always laugh when they say things like "Bergevin is smart to have that cap space". Well considering he tried hard to re-sign Radulov for the same salary, he clearly didn't intend to have it.
I agree that the cap space does give them finiancial room, but they don't really have the assets to trade for a big piece. They have arguably the worst prospect pool in the league, and I can't see them trading 1sts with that scenario.
I think Bergevin pulled off the move of the offseason, but despite that, he's still probably had one of the worst offseasons. That team is definitely not better IMO.