BYU has got about 30% of the LDS 4* & 5* in the last 5 years, that has absolutely had an impact on the success of BYU.
If that % doesn't get up to 50%+ BYU will continue to struggle with the schedules they have set up in the future.
There is a lot more top tier LDS talent to be tapped into in order for BYU to have the talent to be a consistent top 25 program and put players into the NFL.