Below are the national statistical rankings of BYU and UK's players last year per Evan Miya's player rankings. Saunders, Khalifa, Hall, and Traore as top 150 players in the country would all be very high level transfers. Also, Robinson is way overrated.
5 Reed Sheppard
38 Rob Dillingham
50 Richie Saunders
77 Aly Khalifa
94 Dallin Hall
107 Spencer Johnson
130 Fousseyni Traore
141 Justin Edwards
159 Antonio Reeves
176 Aaron Bradshaw
261 Tre Mitchell
279 Trevin Knell
373 Jaxson Robinson
548 Noah Waterman
746 Adou Thiero
937 DJ Wagner
1320 Ugonna Onyenso