We have had a new head since half way through last year, and he has been making real attempts to cut workload.
This which he has changed / are changing include
Vast reduction in marking expectations, reduced performance management paperwork , removed sen paperwork , reduced/removed lots of middle leader stuff like simplifying exam reports, removed written reports, removal / reduction in end of year exams + marking. There are some more which I can't remember.
He hasn't really added in much to replace these things, apart from doubling the parents evenings (two night rather than 1 night) to replace the written reports.