Do you not see how terrible his system is? There's a reason the team looks so toothless offensively and it's not because they have young guys.
I don't know how you can watch them play and think anything Vincent is doing is working.
I have to hope that the system pretty much depends on the roster.
See what players are picked in the top 9 by Dallas, Washinghton of Trots, etc. Now imagine that we should play a similar style with our players. Sillinger and Chinakhov need a player like Voráček (or at least Dom), not Texier, a hit and run player. Besides, Yegor is more of a sniper.
Roslovic is inconsistent and still not ideal defensively (btw, Gaudreau is bad in defense too). Boone is a similar player to Tex, but even more vertical.
Teams like Tampa might have a 3rd line of Sillinger -- Jenner -- Texier (see Coleman - Gourde - Goodrow), but no more than that, there wouldn't be a single one of them in the top 6.
The team reminds me of CSKA Alexander Radulov when Dmitri Kvartalnov was the coach. "5 and 1/2" technical players on offense, other vertical, mobile defense. The only difference is that Kvartalov wanted that type of players, while Vincent had no influence on the roster. And then there's the Laine injury and the fact that Johnson still isn't physically ready. It is +2 vertical players.
So when you criticize the tactics, you have to first look at the players, the lines. I read a PLD interview where he said an interesting thing. They were specifically looking for players to play with Panarin. Dubois played with Russian wingers in juniors and very good, so they took advantage of that.
And still one, the team is too young.