Cloud PaaS and SaaS - Impact of System Administrators role

Hi All,

I am curious to understand , if the role of Admins would diminish as we go
buy due to hosting of server instances at cloud services providers and pay
per usage concept...

In other words what is the impact from traditional Env role to Cloud Env
for the IT Admins cutting across Technologies from Web, to App Firewalling
to Middleware to Storage etc

Please share your thoughts and trends
Regards