@Covert Rain
I think you will find this article interesting. The talent pool is getting deeper for teams that seek like the Heat and Raptors. It's not as much about math as the effort spent to find and develop these players.
By Brian Windhorst ESPN Senior Writer:
"You're seeing more undrafted guys contribute, and I think a possible reason is the difference between the 25th player in the draft and the 95th player is getting thinner," said Nurse, who won a championship as a G League head coach and has always believed in the potential of players in the minors. "It makes player development and using your G League team important factors."
Undrafted players have shined for two the East's surprisingly successful teams.
www.espn.com