Making every round wide open just means it'd start with Wilt, 15-16 Steph, LeBron, and most everyone would react by drafting the best they could as soon as they could. It'd end up pretty much being a descending order draft, with a small amount of exceptions. One possible way to do it: 1st rd you can pick <5 or 5-6, 2nd rd 5-6 or 6-7, 3rd is 6-7 and 7-8, 4th is 7-8 and 8-9, 5th is 8-9 and 9-10, 6th 9-10 and 10-11.