There is nothing rain man about it. It is simple math. Ohio State has signed 5 five star recruits and 20 top 200 recruits from just the state of Ohio since 2018. If you go back further, they sign even more of their talent from in state.
That isn't and will never be an option for Nebraska, so they have to battle all the big boy programs for any recruit they want and the fact Nebraska has signed exactly one 5 star recruit from outside the state of Nebraska since 2000 -- they don't win many of those battles.
But hey -- remember the 70's when Nebraska was the only school with a strength and conditioning coach?