I'm not sure what point you're making here? My list is guys who have succeeded at the 4 plain and simple. They each had different 5's who played with them and they span some very diverse eras of basketball. No comparisons are being made. Simply illustrating K's success with versatile 4's throughout the years in response to your comment not understanding what I consider a tweener 4.
I saw the "amnesia" comment as a bit of a bait, but perhaps I read it incorrectly (tends to happen on these boards). Anyway, I agree, those 4's were all successful, but they were almost all somewhat protected by a legit 5-man. If Chase, Obi, or MP3 can step up and be a legit 5 even near their levels, then yes, I agree, Ingram can hold the 4 down on a bigger scale. If it is he and AJ together at the 4/5 for the long haul, I see a Parker/Jefferson result with Brandon getting plenty of individual stats, and even the team getting some decent wins, but Duke would fade IMO. Another caveat to this would be if K played zone there, even without a true rim-protector. Will be interesting for sure.