You can have both, but you need to have a clear cut specialist in each.
You can have Rondo or Nash or Stockton playing with Rodman and then utilize players like Noah, Boerwinkle, Unseld, Dr. J that can bring you rebounding while chipping in reasonable assists.
For an Open League you need to have a guy who can pass and hit the three, rebound and dominate the middle (offensively), and then a bunch of specialists. Low usage rebounders, defenders, and passers will not kill your cap space, but usage will. So make sure that you have two higher usage multi-purpose players and then add in your specialists.