sometimes teams are just legitimately bad. That format would punish bad teams because of other teams tanking.
to me, the simplest fix would be that no team could be eligible for the top-4 of the draft that was in the top-4 in either of the two previous seasons
so last season, assuming the Spurs and 76ers are in the playoffs, Dallas and Charlotte are out of the lottery and just get slotted by record. From 2024, Atlanta and Washington are eliminated and get slotted by record from 11-14. That would mean that if the season ended today (assuming no play-in team advances), the lottery would look like this:
1st seed - Sacramento
2nd seed - Indiana
3rd seed - New Orleans (Washington ineligible)
4th seed - Brooklyn
5th seed Utah
6th seed - Memphis (Dallas ineligible)
7th seed - Milwaukee
8th seed - Chicago
9th seed - LAC (Charlotte ineligible)
10th seed - Portland (Atlanta ineligible)
11th slot - Washington
12th slot - Dallas
13th slot - Charlotte
14th slot - Atlanta
you could even restrict it to 3 seasons instead of 2, but that would knock the Blazers out of the 2026 lottery