Haliburton, Young and Conditt are all improved this year. I could argue Lewis improved a little. Jacobson regressed. Everyone else is new and I don't know how anyone could determine whether they've improved OR regressed. The players didn't get worse, we just lost Shayock, Wigginton, Horton-Tucker and Babb (all 4 are playing professionally with 3 of them under NBA/G-league contracts) and replaced them with Nixon, Bolton (who is solid, but an inconsistent sophomore) and two freshman.
The only real disappointments for me have been Jacobson's regression and Griffin not making a jump.