I would strongly caution against pushing this athlete into sprints based on the info I’ve seen in this thread.
The info on playing hoops in the winter just adds confirmation that this is likely a mid-d athlete, perhaps even a distance athlete, with a lot of room for aerobic development but with the basic speed to be recruited as a middle distance runner.
I’m always hesitant to make judgments based on limited info and without seeing athletes in person, but what I’ve seen quite a bit with good HS distance runners is the speed-based ones will always be able to move down and compete. Most of the speed-oriented 800 HS guys I saw who went on to D1 level were running 50 or better. This makes the sprint coaches think they’re sprinters when they’re younger. But they’re not. Running XC, a 4:30, etc. makes it pretty clear to me this isn’t a fast twitch athlete.
That doesn’t mean he shouldn’t run some 400s and the 4x4, etc., because those are good indicators and good training. But they’re secondary to his natural events I think. Maybe we’re saying similar things in different ways I just think it’d be a mistake to move away from distance unless that’s what he prefers