This is not 1954 to 1969. 1954 to 1969, sub-4 miler may have received invite on Tonight Show with Jack Paar or Johnny Carson. 2021, low mileage 400m-800m guys and Marathoners race sub-4 mile or 1500m equivalent.
More importantly, how many sub-1:45/sub-3:35 800m/1500m guys by 21st birthday have U. of OR produced?
U.S. historically is the best 400m & 400mH nation going back to Lon Myers, 19th Century. U.S. produces more 45.00 to 47.99 400m guys than any nation in the world. [Most sub-1:44 800m guys have raced sub-48 400m or have been sub-48 400m capable.] All those sub-4 one milers, U. of OR but only one 1500m Olympic gold. U. of OR needs to worry about developing fast 800m guys. It is no fluke that the one 1500m Olympic gold medalist U of Oregon produced also has a sub-1:45 800m personal best. If I recall, Centrowitz sprinted final 300m, 2016 Olympic 1500m final, 38-flat. Only a sub-1:45 800m guy can finish a 1500m race like that.