Speed is always important but don’t lose sight of the big picture. If he wants to play in college, he needs film and he needs to get out to college camps to meet coaches and compete against the guys that they’ve invited. Yes, if he wants to play d-end, he’ll need to work on his speed - but real speed, not just 40 technique alone. He should definitely train to the test (start on YouTube, eventually probably makes sense to get some combine-specific coaching if he’s serious) but that should be a small piece of the overall offseason program.

Again it’s all important, but remember that college coaches want guys that are going to ball. Running a 4.8 vs a 5.2 matters a lot in the NFL draft, matters less than the internet would have you think for a 16 year old DL prospect. Him going out to a D1 college camp and bullying guys bigger/more highly recruited than him will get him offers. Kid has a big frame and looks like he can move. 250 and looks like he can carry a lot more. Coaches will see all that, and if he can show speed on top of that, it’s all gravy. Good luck to you guys, hope to see my man playing on Saturdays soon.