I have seen plenty of teams outside the 4 big conferences with solid running backs pulled from the transfer portal. Dozens of running backs enter the portal from the SEC and BIG10, as well as surprise running backs from lesser conferences. BYU should be churning through them like everyone else. Most of these kids are one-and-done and sometimes two-and-done. That is the world of NIL.
The portal transfers look for Money, playing time, and coaches that prepare them for the NFL. We must hire coaches with a track record of coaching NFL talent. The rest will take care of itself.