The norm with BSF is to tupe the staff over before the infrastructure changes too dramatically. Then all the kit that's not good enough to meet the set criteria is replaced with new, servers, PCs et al.
Once the new kit is in the Techies and NM will continue looking after the day-to-day running of the servers, with Support Consultants being called in if anything major needs doing.
The support consultant's position will probably not exist in the local area so any NMs worth their salt can also look at this position for progression.
In Leeds no-one was canned, even the really bad staff. If they're talking about not carrying all staff over, you probably have too many in the 1st place. I know it sounds harsh, but we're running a school of 1200 kids, with almost 1000 bits of kit, with 2 guys. There were 3 before BSF with half the kit.
If you're any good you'll be fine, there will, un-doubtedly, be a few bad techies who have reason to worry.
I know it's a big change, but for Education and schools to progress they need this kind of up-heaval.