While the general assessment may be correct, it seems a tad odd to tag the retirment of a guy who played in 8 games last year as a sign of new times this season. Even Ron, again obviously a "ball stopper", only played in 50-some games last year. There are obviously some deeper issues than those guys alone. I should also note that Bobby, love him and all, is largely a non-passing ball stopper of a PG. The times may be changing and all, and that is fine (although at least as many ball stoppers have won titles as pass and cut weenies, you have to actually be good enough to justify the ball stopping), but the Ron move is the only thing done this summer to really move things in that direction.
Basically Beno, Kevin, John and Mikki are all subpar for their positions as passers amongst our starters. Bobby, Douby, Shelden, Greene and probably Brown (shoot first rep) amongst the bench guys. That leaves Brad, Cisco (when not gone wildman), Spenser (although at this point he often shoots as soon as he touches the ball, so he might qualify as much as ball stopper as passer despite the skills), and Jason (who I have hopes for, but obviously we will have to see) as guys who might actually be above average for their position.