Nice observations. Generally speaking, I think having more experienced guys means that we ought to have more well-rounded "basketball players". They've been through it before, and if they were completely one dimensional, I don't think we would have brought them in.
Guys like Bell and Starling can and should improve. They both came on as the year progressed. I like that we have options at SF if Bell doesn't put effort into the defensive end, and needs to sit for a while and watch. I like that Starling doesn't have to be the primary ball handler for 30 minutes. I like that we have 4 guys who can bring the ball up.
I don't think we will have quite as many "pure shooters" as we have had in recent seasons, but I think we have enough, in Starling, Moore, Lucas Taylor, Carlos and Cuffe. And Donnie Freeman looks capable, as well. I don't feel like we're super-burly, but we should be able to match teams' physicality.
We have Lampkin, Davis, Freeman, Westry and MacLeod who should be pretty decent defensively.