I know this had been gone over in the past and there are no hard numbers given the diversity of different organizations so please bear with me.
I have been tasked with justifying a new FTE in our IT Department. We are a small to medium organzation with 600+ users. We have 3 administrative offices approx 60-80 miles apart. Roughly half our staff work onsite and the other half in the field. We have over 300 network devices including desktops, laptops, netbooks and various cell phone flavors in 3 subnets. 30+ servers, many in a HA virtualized Clustered environment. We host our own Exchange, Citrix, Accounting, Medical Billing, HR, Payroll etc. We are developing Sharepoint at the moment as an Intranet platform and 1 of our 3 IT personel is strickly Application Development (not SharePoint, a case management application).
That leaves me and 1 tech. I am the IT Director so as such am responsible for the Departmental, Strategic and Business Planning for my department. Also documentation, Policies and Procedures etc. We also have to cover help desk, trainings, presentations, upgrades, rollouts etc.
We know we need another body as does my supervisior, the COO.
I have been asked to present hard numbers as to industry standard staff / user ratios...
What is the best way to go about analyzing and computing this since I do know that there is no exact indiustry standard?
(I have heard more often than not over the years a number which I think is doable - 1:75)