Cloud computing has been around in the business world for a number of years in the form of programs like salesforce.com. Businesses require the same things as education does; security,value for money, ease of use, portability, instant access and so on. For individual businesses, these programs have made maintenance, upgrades etc of the program easier as it's taken care of by the supplier like Salesforce. Companies don't have to invest in their own technical expertise to make the program work.
The difference between these cloud programs and some of the old, current, educational ones is the way that they have been developed. If you have an MIS, or any educational program, that's based on old technology, as BromcomPublicRelations outlined above, then you are still going to have problems and require IT people to solve them.
If you use programs that especially written for the cloud or hosted approach then the requirement is reduced or eliminated. Some of our customers (and this is an example, not a sales pitch) don't have IT technicians, the program is just managed by the school secretary.
In some small, cash strapped schools, the infrastructure doesn't exist. Cloud applications like Google Education and the like are helping fulfil the ICT teaching requirements, but without the infrastructure.
That's not to say that IT expertise is not valuable in schools. What the best cloud and hosted services do is to free up IT specialists from getting bogged down in keeping the infrastructure working, giving them the time to do the much more skillful job of making sure the data is meaningful and contributing to the education of the students.
But it's horses for courses. There are some good programs that have been built for the internet but not everyone in education feels comfortable going down that route at the moment.
How about this for a barometer test: check how long until you next access anything on the internet whether it's a website, Google search, email, Facebook or whatever, using your computer at work, home or your smartphone. Think about how inconvenient it would be if you couldn't. I suspect the vast majority of us will conclude that we are already hooked on the internet and therefore cloud of one sort or another ...