He's being proactive to whatever has come up. He hasn't been there very long so naturally it's not his team yet. Habs management is either patient, stubborn or oblivious to their current roster depending on one's viewpoint. We may have a clearer picture by next season.
And why be proactive? Fantilli, K. Johnson, Marchenko, Voronkov,
and Werenski are already the core of the team, see the stats. Olivier is an excellent enforcer. All of those were drafted/signed by Jarmo. Also, don't forget Brindley and Mateychuk, who will join them. There are possible trades for Sillinger, Chinakhov (I don't really believe that), definitely Provorov. But the foundation of the team is already there:
Voronkov - Monahan -
Marchenko
xxx -
Fantilli -
K. Johnson
xxx - xxx -
Brindley
xxx - xxx -
Olivier
Werenski, Fabbro
Mateychuk, xxx
xxx, xxx
It is 4 players from TOP 6, K. Johnson can be a star, other TOP 6 players.
Werenski is a star now, Mateyhuk TOP 2 player.
This is the basis of the future team, which will need to be supplemented sensibly. Mind you, I'm not counting Chinakhov and Sillinger.