BSF is unfortuatly about standising ICT provision across LA's so that they can meet the "Every Child Matters" agenda a nobble goal and the theory is that all school get better ICT provision. Unfortuatly because so much time effort and money is being spent on getting everyone to agree (pfs advisers are currently being advertised at 45k + 25% bonus). I feel a fudge will occur and schools will have some good things ie only one support number but some difficult things like lack of flexibility and higher costs. For the four years after the BSF contract is awarded there are no capital grants from the DFES so no money for new computers (or furniture etc). The only way around it is to write into the contract a replacements budget but that has to go via the managed service.
Gommit to answers some of your concerns.
The roles when working for big companies will lead to conflicts of interest issues for tech staff on site. You (and for that matter me) will have managers that understand IT but not schools so they will expect locked down systems so no more doing favours for teachers because it's in the best interest of the school also all the network/server side operations will be done remotely. This will me anyone on site will have very limited rights to do anything and thouse off site will have no understanding of what the teachers and students really need. In short ICT technical support is being changed from a lean flexible approach to a fat slow changing mega corperation.
How can we make things better ?
Get involved with the process. Each LA has to produce a vision as to where they see their ICT education service going. So get a copy and point out to your head all the things that are missing/wrong/unrealistic (and nick the good ideas). The Heads have all the power before the contract is agreed make sure they really understand what they are letting themselves in for. I think the idea behind a lot of BSF is good the problem is with how it is being implemented.