Seems like the obvious reason is that they over-recruited the position in the 3 previous classes to fill previous holes. They need 2 per class, and they've taken 3-4 per class (because they were continually disappointed with the previous class), and will have 11 players for essentially 2 spots (3 in rotation) next year.
That's the reason they like flexible DBs and RB/WRs, they can be moved. ILBs are harder to move.
They probably thought White was going to leave, but now they really like him. They now need to wait and see if Lamb, Ekwonu, or Liufau can grow into WDEs, but they also can't move them until they know White can stay healthy or Bauer can play consistently since DE is stacked next year and ILB is open.
Jonathan Jones
Drew White
Jordan Genmark Heath
Matthew Bauer
Jack Lamb
Shayne Simon
Jack Kiser
Osita Ekwonu
JD Bertrand
Marist Liufau,