Nebraska recruiting is hurt somewhat by Texas high school players not wanting to play for a team that does not play the likes of Texas, TCU, Baylor and Texas Tech in the state of Texas. Nebraska has not faced any Texas team since 2010, its final year in the Big 12. In its secession from the Big 12, Nebraska shot itself in the foot.....big time. They remain competitive, but are far removed from championship worthiness.
While Oklahoma enjoys its proximity to Texas, Arkansas, Missouri and Louisiana, Nebraska is surrounded by South Dakota, Iowa, Wyoming and Colorado....aside from being two states (one of which is Oklahoma) removed from Texas.
Nebraska cherry picks like OU does, but the records on the field reflect there is a serious talent drop off from the glory years in Lincoln.
This also tells me that OU must maintain its rivalry with Texas every year or suffer the same fate as Nebraska. So far, 8 of Oklahoma's 19 commitments are Texas kids, with a few more pending. OU's roster on this website lists 24 Texans among its 81 total.