After seeing the scrimmage last night and thinking about it more I've changed my mind from thinking it was pretty even with a slight edge to Group B, to thinking group B is actually significantly better.
A depth chart like was used in the OP is a nice organization tool but obviously doesn't represent what a real rotation looks like, especially with so many versatile guys on the roster. I think to evaluate which team is superior you have to break it down more to facets of the game depending on what you think the rotation players bring to the table.
First you have figure who the ideal rotation guys are in each roster. Group A (representing last season) is fairly clear, 10 guys Brandon/LA/Greg/Andre/Nic/Blake/Rudy/Martell/Travis/Pryz were slated to see pretty regular minutes in an ideal injury free rotation (obviously never the case last year but the OP's question leaves out the consideration of injuries). Group B is a bit harder because we're speculating, but right now MY ideal injury free rotation guys are Brandon/LA/Greg/Andre/Nic/Marcus/Wes/Bayless/Pryz (same ideal starters, totally different bench except Pryz, expecting Rudy to be traded before or soon after the season begins). So in my eyes we're swapping Blake/Rudy/Webs/Outlaw for Bayless/Wes/Marcus.
After breaking down the roster to who you actually think should play then you can decide which facets of game you think are important to winning and compare which lineups you think are better at each.
My opinion on the top 10 most important parts of the game(not in order), and which squad has the upper hand:
1. Scoring overall(starters)- Same starters, but development alone should give a slight edge to B
2. Scoring overall(bench)- I think a 1-2 bench scoring punch of Wes/Bayless is superior to our primarily jumpshot taking bench from last year (remember Jerryd's playoffs?). B
3. 3pt shooting- Group A, Wes is as good as Rudy/Webs, but unless Bayless has greatly improved then Blake and Travis were much better.
4. Penetration/Slashing- Group B, Wes looks like he has a better handle than any of our previous perimeter bench players and Bayless > Blake
5. Inside Scoring- Even, Starters are the same until LMA actually shows us something down low, Camby isn't really an upgrade because he's more of an elbow shooter than an inside guy.
6. Playmaking/Passing- Starters for B are a little better because of Nic's development. Bench is pretty even and probably towards B again if Wes is as good at initiating the offense as the players/coaches have been saying all camp; Blake being slightly better than Bayless, Wes being talked about as being as good as Rudy and clearly better than Webs, and Camby(a pretty good passer for a bigman) being a big upgrade over the anti-playmaking Outlaw. B
7. Rebounding- B, do I need to explain?
8. Interior defense- B, same
9. Perimeter D- Edge to B, Blake v Bayless is kind of a wash, but if Wes is as advertised than he'll be a bit better than Martell and clearly superior to Rudy/Trav.
10. BB IQ- Outlaw v Camby gives this to B no matter what.
B-8, A-1, Even-1
Some of the ones I have a slight edge to B I could see being even in some eyes, but I really can't think of anything outside of 3pt shooting to give rotation A a clear advantage.