That's our starting lineup. Not good.
(your #4 lineup and #2 'lesser-used' lineup are the same).
The problem is that both Demin and Hall need playing time...but you should limit the lineups with both Demin and Hall on the floor. It's impossible to get both player 29 minutes unless you're using - at best - the #6 productive lineup for over 40% of the game.
The other issue is that our top 4 lineups and 5 of the top-6 include Catchings. And, 3 of the top 4 and 4 of the top-6 include both Saunders and Catchings. So, it's tough to get the best lineups unless Catchings hardly subs out and Saunders gets more playing time.
My thought is that Catchings and Saunders *should* both have more playing time and that Demin should have about 30 minutes and Hall should have about 20 minutes. That puts Demin and Hall on the court together only about 25% of the time and helps to optimize the use of the most productive lineups while balancing the playing time.
What is the data on the most commonly used lineups?