Dan Pfaff is one of the worlds best biomechanists. Hes also coached All-Americans in the LJ,HJ,TJ,PV,JT,and weight throw. I also think he advised Donovan Bailey when he was in his prime.
Let's look at Coach Pfaff's all-time collegiate list:
Mario Sategna 8172
Mikael Olander 8126
Sheldon Blockburger 7964
Bruce Reid 7900
Aaron Fox 7804
Bengt Jarlsjo 7733
Kanon Vanderhoff 7449
+6000 hep Sharon Jaklofsky
And more sub 10 sprinters than any coach in history.
Pretty tough to argue the kid made a poor choice.