The best thing that the Habs can do is to keep Tatar. The Habs have been hit by the injury bug this year. They have also had two eight game losing streaks. They will most likely miss the playoffs by 8-10 points this year.
If you want to plan for next year they could have less injuries, the young players to step their games up, spend to the cap and add an impact player. Hopefully that player would be a left defencemen. If all that happens, which is pretty realistic then they just may be a playoff team.
The biggest problem is that with Price and Weber they can’t fully commit to a complete scorched earth rebuild. So they have to give it a go to be a playoff team.