Again, Leonard became great partly because he ended up in the right situation (managment, coaches, teammates & development program) to exceed expectations.
Judging the Spurs development program or coaching staff based on not finding "another Leonard" is silly because 1) Leonard was a rare breed of player that was able to learn and developed faster than most other prospects & 2) members of the development staff that developed him have either been promoted or moved on to other organizations.
Lastly, many players (Justise Winslow, Rondae Hollis-Jefferson, Mikal Bridges, Miles Bridges, Stanley Johnson, OG Anunoby, Michael Kidd-Gilchrist, etc.) with a similar profile to Leonard (in college) have landed in other team's lap & none have even reached an all-star level of play. Quite a few, if not all, were drafted higher than Leonard with a "higher ceiling" or thought to have more potential than him too.
That says a lot about Leonard's greatness, dogged determination and the Spurs' great development plan for him.
Again, the likelihood of finding another player like Leonard is extremely unlikely. Just like the Lakers will be hard pressed to find a Bryant type again at the 16th pick (straight out of high school) or the Bucks with Antetokounmpo.
All the young players currently on the team, minus Poeltl, were drafted or acquired outside of the lottery so any of them reaching all-star level is a huge, huge plus. Hopefully, the team can find one or two high-level players through the draft that can be complimented well by our current group (of young guys). Or they can find a reclamation project (Bridges in Charlotte possibly?) that can find another gear.....