Part of the problem is that a lot of the feuds they are building towards involve people who aren't full time wrestlers.
The big matches for Crown Jewel are Braun vs Brock, and DX vs Brothers of Destruction. Really Brauns the only guy that's going to bother actually performing on RAW, so you've got nothing but promos.
Likewise the womans champ Ronda is a part timer as well. She still shows up to work more often than Brock, but she doesnt' wrestle that much (which objectively speaking is smart since she's a special attraction).