[DTV]

If nothing else, trimming the network team would save money and further help the BBC defend its spending in the midst of a cost of living crisis. One quick look at the salary list will show the number of regular network presenters who are on over 100k.

As you identify, it's a move that would have a good PR angle; however, it's not one that will save a substantive amount of money. The network news budget is likely somewhere in the region of £50-70m (based on where it was 15 years ago, inflation and the fact it has been ringfenced) and the total presenter spend (including Breakfast) is between £2.5-3m (depending on how you count part-timers like Bruce and Husain). At most, that's about 6% of the network news budget. 

Losing Alagiah and de facto losing Edwards does trim that down a bit (by £770k, to about 4.5% at most), but that increases the number of slots that need to be filled by other presenters - any saving is going to be somewhat deadened by others filling that void and taking on extra responsibilities (not to mention, likely overtime payments for working more than contracted in the interim).

I think the five main presenters (Raworth, Myrie, Chakrabarti, Brown and Hill) and three occasionals (Bruce, Husain, Daheley) are likely enough to work for now, but I would say it'd actually be better to think about adding an extra main presenter at some point - the team is not especially young (at least one presenter is eligible for retirement in the next few years), so getting some new blood in somewhen would be sensible.