The depth chart makes me think that next year is the year for Beaty and this group.
There are five seniors on the offensive and defensive two deep. FIVE. That means pretty much everyone on the two deep is back next year, with the exception of probably Dorrance Armstrong. That means just six of the forty five guys listed will be gone next season. 39 players should return, along with Tabor, Durley and Evans, who all should be eligible for medical redshirts.
That means that legitimately, KU could return every single offensive skill guy that gets substantial time this year. A returning starting QB, with a full group of RBs and WRs. KU could return all but one DB that plays significantly. In the pass happy Big 12, that experience will matter.
As @jayballer54 said, only three total senior starters. This is an experience year, with the guys that will contribute to the next KU bowl team getting the game reps they need to turn those close games into wins next season.