An old and redundant argument .. a bit like the BBC.
1) Name something that the BBC still does well. Their commentary on Wimbledon this year was truly atrocious - I thought that some of the commenters were perhaps on hard drugs.
2) No, they are not 'making in-roads to slimming down', that is unless 'slimming down' means increasing their management spending while not addressing waste and unused resources.
3) In this age of record and watch later, adverts are something that can be bypassed or easily skipped.
There are some things that the BBC does do really well, such as Radio 4, wildlife documentaries, period drama or occasionally sports coverage. Sadly those do not represent enough of the huge "trebles all round" that the monolith spends.
Sorry, but the BBC is now an anachronism.