these are correctable problems. move encarnacion out of the #2 slot and let him hit 6th, and you improve both positions; obp in the #2 hole improves no matter who you put there , while encarnacion starts generating some rbi production in the #6 slot. and who should bat #2? i still think it should be edmonds, but since it probably won't be say rodriguez vs right-handers, luna vs lefties (hec has a .340 career obp vs southpaws) -- at least, until the big "impact trade" goes down . . . . if the cards can just post a .330 obp in the #2-hole the rest of the way, it will improve the offense by about 25 runs moving forward. translates into 2 or 3 wins, which the cardinals will probably need.
i wouldn't expect much more out of #s 3-4-5 as a group, and while performance out of the #7 hole (ie molina) can only go up, #8 can only go down; seems like those two cancel each other out. but #2 and #6 can both improve, and almost surely will even if the cards don't make a move.