I was the 6th one to pick . I spent around 300k on the draft points, I don't know if it was a good idea or not. I got 1, not sure if 2 of the players I tried to get. 
It depends. If the teams that are under you are not active teams, they might not use any points in the draft. It's about luck also. They might pick the players you are trying to get, or not. So it's kinda hard to say . Just hope for the best.
You should use 10 points so you can open Group Demonstration. That's really good, and worth the 10 points. Next I'd use 10 points on Scouting Combine, to pick the top 18 year olds. Then just interview players you think are top quality.