Drop the co-writers, drop the 5th (and 6th?) live members, pick ONE producer, and start writing songs without trying to make them sound a certain way. Just let it come naturally. Every time a band tries to revert back to the way an older album sounded, it doesn't end up being very good. And I hope they don't try to write radio hits, because it obviously hasn't worked. Just try to write good songs, regardless of if you think they will do well on radio.
Could not have said it better myself. This band is so much better without all the extra people, and when they don't try and make it "big"