I think having Bob/Knight as the tandem makes a lot of sense to start the season and that's what I prefer, we don't know how Knight will handle a full load as such a young goalie and it's good to have Bob take some pressure off to start.
But if I had to make a prediction before the puck drops for the season...Bob/Knight will probably get 60/40 for the first maybe 20-30 games, then it'll go 50/50, and by the end of the season it'll flip to 60/40 Knight/Bob with Knight as our playoff starter. I'm not a Bob hater and I think he'll be better this season, but I just don't see him outplaying Knight in a tandem. I could see Knight end the year with 40-50 games played and I'm going to guess Knight ends up at least a Calder nominee this year.