It's really hard to overstate the paucity of NBA rotation-worthy players on the Pelicans during AD's tenure there.
E'Twaun Moore was their fourth/third (once Cousins went down) player in 2017-2018.
That is something.....
Jrue Holiday, Eric Gordon, Tyreke Evans, Ryan Anderson, Omer Asik. They were all on the same 30 win team. That team also had Dante Cunningham, Alonzo Gee, Toney Douglas, Alexis Ajinca, Norris Cole, Luke Babbitt, Kendrick Perkins, Ish Smith, Tim Frazier, and James Ennis all play.
Now if you want to claim that Davis never had a real legit #2 guy (aside from Cousins) that has merit as Holiday, Gordon, etc. are really best suited as #3 players, but there has actually been a plethora of quality players that have played next to Davis during his time in New Orleans. The real issue with New Orleans is Davis penchant for missing significant time. That is perhaps the greatest reason they haven't won as much as they should have with someone of Davis' perceived talent. Though the fact that they really haven't won that much should be concerning if you are relying on Davis to be the main man.