Everyone points to Vegas big D and 4th line when talking about their depth. But the thing I really liked about their team is that they had 2 really good players on each of the top 3 lines.
Eichel-Marchessault
Stone-Stephenson
Smith-Karlsson
They played garbage like Amadio, Howden (Barbashev?) with them, but it didn't matter because those guys can all drive a pretty good top 2 line.
IMO the Leafs should be looking to add 2 good forwards. Assuming Murray goes LTIR, they should have ~$16 mill in cap space with 10 F, 6 D and 1 goalie. And this lineup:
Knies-Matthews-Marner
Robertson-JT-Willy
Jarnkrok-XXX-XXX
Holmberg-Kampf-Lafferty
Rielly-Lilly
XXX-Brodie
McCabe-Timmins
Gio
XXX
Woll
With the non Big 4 being interchangeable.
They really don't need to spend any more money on depth players. Split that $16 mill up on the best 2 F, D you can find and Samsonov. that averages out to $4 mill/ player. Realistically Sammy shouldn't get more than $3ish max on a short term deal, leaving $13 ish mill for 3 players. Lots of cap flexibility to add 3 good players.