Derrick's approach, if you listen to interviews with his HS coach, his college coach, and him, seems to focus on moderation and many small improvements, consistently, over time. That more closely mimics Rupp's rise than the careers of the Schumaker crew.
That said, would Salazar take Derrick on? He already has Farah, Rupp, Centro, Ritz; world or Olympic medalists one and all. What event would Alberto see Derrick in as a world class contender? 10k? He has the PRs given his age, but his closing speed will take some developing, but now is about the time Rupp developed his, and it's not like Derrick lacks the top end speed. Half or full marathon? Maybe, but Alberto seems to have the most success on on the track.
Just a hunch, but I don't think Derrick will end up with Salazar or Schumaker.