We went through all the hand-wringing about the walk-ons
last year after the Miami game. In that thread, it was the argument about how much talent Bo left for Riley compared to how much talent Callahan left Bo. People were convinced that we were playing so many walk-ons because of this dearth of talent on the roster.
However, as it turned out,
we were actually playing fewer walk-ons in that game than played in the first road game under Bo (using the first road game for both teams because of the limited travel rosters). So we were actually playing fewer walk-ons last year than at the end of that supposed boon of recruiting.
Now, participating is different than starting so it's not a perfect comparison. But that was 20% participation last year vs. 24-29% participation in Bo's first year (depending on which numbers you want to use exactly). If I had to take a guess, I'd say we'll see about 57 players on that depth chart play and I would guess 14 will be walk-ons which would be 24%.