IMO, a successful non bust criteria is as follows:
Top 5 pick needs to return 200+ quality games
Top 6-10 pick needs to return 150+ quality games
Top 11-20 pick needs to return 100+ quality games
Top 21-30 pick needs to return 50+ quality games
Obviously injuries need to be taken into account which means you could give Clayton some leeway on Walsh and Williams but I doubt either would have fit the above criteria even if they weren't as fragile as tissue paper.