Everyone is making good points because the roster is so flexible. It's almost like each answer is correct.
I think the assembly of players and talent is going to allow a good coach to really shine. I'm not even trying to forecast the lines, because I don't have nearly enough information. I haven't even been able to see any preseason games, let alone know what guys look like in practice or their ability to do the things they're asked to do.
But if Bannister is truly an NHL caliber coach, we'll be able to see it in how he takes this collection of players, crafts a line-up, and gets them ready to compete. There is a lot more to work with here than there was last season, and he has a regular launching pad of camp that he never got last year.
I'm ambivalent about whether he is a coach for the Blues for long, but he can certainly force his way into the longer term plans with a good result.