I invested 10 points in the Group Demonstration, and found 6 x 5-ball prospects, and 2 x 4-ball prospects. The rest of my draft order after those eight is some sort of mix of random/lucky numbers/sequential order.
If I could get two of my top 8 picks, or even if one of my 3 draftees has any potential (not necessarily the stat "potential", I mean the conceptual kind), then it will be a successful draft for me.