there is too little regulation on the internet NOT to warrant an IT department for at least compliance and auditing purposes. I agree in general with the de-centralization of the relatively new concept of the IT department. however sys admins don't just patch machines and dust off hardware, they should be deeply versed in the business rules of the enterprise. The cloud may also need a formal identity provider before true mobility is achieved- possibly depending on biometrics. administrators will also need a 'mobile me' solution to quickly brick and unaccounted for devices.
by 2015 the will still be billions invested in local central solutions for which enterprise will want a decent ROI. Virtualization projects have not yet begun for a huge swathe of datacentres. let's not mention the huge cost of network upgrades which medium sized businesses are still paying for- 2020 more like
Keep Up with TechRepublic