I am looking at IT support team structures for schools of approx. 900-1000 pupils, with a VLE and looking to be cutting edge in ICT teaching and learning. What structure and size do you think is best?

Structure, we currently have . . .
Director of IT
Network Manager
VLE Manager
IT technicians x 2.5
IT Admin/SIMs Manager x 1

What structure/roles do you think is most effective?
Do you think there is enough in our IT support team, or too many staff?
What alternatives would you suggestion?

Many thanks in anticipation . . .