Amongst the common wisdom top 4 players on titlewinners, there have been about 10 -12 rookie contract players in last 30 years. So over 60% of time, the top 4 are all vets. Never to my knowledge two in top 4 in title season. Not totally clear cut who is # 4 on this season's Cavs but I'd say they have one such guy (say Waiters). Same for OKC (Jackson). Chicago, probably not. Spurs with Leonard. Clippers, no. Houston has Beverley, Ariza probably bumps out Jones. GSW now with just Thompson on rookie deal. Portland, one (Lillard). Dallas and Memphis, no. Toronto, one. Washington, only one now (Beal).