I respectfully disagree. There are several roster spots where the talent of the players are huge questions. As other posters have talked about, it's a talent AND development issue.
Take quarterback: even with multiple scholarship QBs, Freshman walk-on Jarrett Synek was ahead of scholarship players Haarberg and Torres.
At TE: despite having 4 healthy scholarship players behind starter Vokolek, walk-on players Brewington and Boerkircher (RFr) are backups.
WR: Walk-on Brody Belt and converted CB Tommi Hill are higher on the depth chart than scholarship players Kamonte Grimes and Shawn Hardy II, despite both players now having nearly 2 years in the system. There are also 2 Scholarship true Freshman options Hill has also beat out for playing time.
DT: despite having 3 RFr and 1 RSo on the roster, walk-on Colton Feist has beat out 4 scholarship players with 2 or more years in the system.
Across the rest of the defense, it's quite obvious that players like Snodgrass, Malcom, Pola-Gates, etc. are probably not P5 level players.