I guess that depends on who you think the bad players are. Karlsson, Anderson & Ryan have all had bad seasons & they trade away Brassard who was a decent player. Hoffman hasn't been great either & Dzingel is finally coming along but before the deadline his name & Pageau's name were coming up to trade. I'm quite sure others could name a few other players who people could argue are good players for some & bad for others. It will be interesting who makes it through the summer & starts the yr here next season.
The best/most important players had below-average to bad seasons with the exception of Stone, Brassard, and Dzingel (Karl, Hoff, Ryan, Anderson, Phaneuf, Pageau, Ceci, Duchene for the first half). I think the last few weeks are closer to what the team on paper actually is though - a bubble team that relies on Karlsson, Stone, and Duchene to carry the load. (No team has success without good goaltending so that's a given that Andy must be good.)