Stones Song Writing Post Taylor
Live the stones always missed Taylor but IMO in the studio the major reason why the post Taylor stones records were not great records with the exception of Some Girls and B&B (cant count Tattoo You because it was outtakes) was because the song writing sucked and the song arrangements were not strong with the verses and bridges. If the song sucks then you tend not to listen or you lose interest real fast as a listener. I for one can not listen to a terrible song its just a total turnoff to me. The stones success and formula has always been the songwriting first. Take any artist if the songs were good then the material stood the test of time.
Look at Dylan his acoustic guitar and Harp that was it before he went electric the songs survived on the lyric, his haunting vocal style and delivery and the great arrangement and melody he came up with or that he 'borrowed' if you believe some of the stuff with him taking some folk arrangements and making them Dylan tunes.
Keith's antenna was down for the most part after Taylor left and his best work was on his own 2 records. Jagger was into himself and wanted to mirror the music trend of the period and keep up with the young crowd.