1 ball is announcer/bench warmer/role player
2 is 6th man/starter
3 is star/allstar
4 is perennial/superstar
5 is MVP/HOFer/ATG
You may need to spend around 100-120 points to scout everyone, although you can use 10 points to scout all the one and two potential players (you might find a diamond in the rough doing this). You can also scout for their stats, but don't waste your points with it if all you're concerned about is potential.