I'll preface this by saying I think this team has the gumption to make an E8 run.
With that being said I think you capture a few of our issues quite well. Defensively I think moving away from our focus on length, and quickness, and shifting toward the opposite of that has left us with some issues on the defensive side of the ball. The zone seemed to function best when you didn't have any of the current roster on the team.
We used to get into passing lanes, get some easy points, and we could always adjust the zone to take away what was working for the opposition. I do think since we can't really take away anything, or create turnovers, we may continue to see some issues. Hopefully we can cover up some of that by having teams miss shots against us, and Benny/Jesse/Frank get a bit stronger on the boards.
We may lack playmakers, but we are able to get shots at times. That's important. Hopefully we can continue to use our spacing to get open looks and outscore some opponents if they miss a lot of their shots. We'll see how it shakes out, but I think we're in great shape if we tweak some things and see our rebounding improve.
As far as athleticism, I guess we have issues there as well.