So to review, line by line:
-- 1st line is still here
-- Perron and McDonald are out; Tarasenko and Roy are in ... Pretty much a wash as of now, but Tarasenko should be better for us than Perron in the future.
-- Stewart out, Ott/Morrow/Paajarvi (whoever you want to put on the 3rd line) in. Eh... Stewart has the most offensive potential but he wasn't giving us much and neither are many of the others. Basically a wash.
-- 4th line is upgraded; Lapierre is a better player than Cracknell.
Not to mention I do still believe Miller > Halak.
So while similar, I don't think this team is worse than last year's. If anything it's about the same, if not a little better.
For real.
If you knock out the guys that left the team our playoff roster would be:
Steen - Backes - Oshie
Schwartz - Berglund - Sobotka
Porter - Cracknell - Reaves
... which is the list of forwards that contributed and weren't total defensive liabilities.
Coincidentally, Hitchock was recently interviewed and said that the 4th line should carry specialists instead of being an energy line, since TV Timeouts give players enough rest anyway.
So going into the playoffs, even with Tarasenko injured, the Blues could roll:
#1: Steen - Backes - Schwartz
#2: Berglund - Sobotka - Oshie
#3A: Ott - Lapierre - Reaves
#3B: Morrow - Roy - Paajarvi
depending on line-matching/circumstance. Get Tarasenko back and you have
#1: Steen - Backes - Oshie
#2: Schwartz - Sobotka - Tarasenko
#3A: Morrow - Berglund - Ott
#3B: Paajarvi - Lapierre - Reaves
which brings back our team's much-needed secondary scoring while keeping the Bottom 6 defensively solid. The top lines don't have as many skilled players, but defensively it's a marked improvement over last season without losing much scoring -- since they didn't really do much anyway.
This sort of adds to speculation on why the Blues didn't go out and grab a scorer: they don't want to add in a scorer that wouldn't be improvements over what we have, and maybe would've ruined the defense of the Bottom 6.
I think that next season the Blues add to the team to make the 3rd line into a scoring/checking line with Paajarvi, Berglund/Sobotka, and Jaskin (assuming no Stastny). Ott to the 4th with Lapierre/Reaves.