Once your past the emerging startup status, running on the cloud involve as much engineers and complexity as running on prem if you want to follow best practices.
The "let's be managed and only hire developers" is a huge myth. All large organizations involve tons of "cloud engineers" or "devops" depending on how they want to call them and are just sysadmins with a different name and a bigger paycheck.
Having actual datacenters doesn't add a ton of complexity and datacenters themselves are often managed by people who don't even have an engineer paycheck. The main difference between being on prem vs cloud is you have to plan (how many servers/storage/network equipment you have to buy and replace on the following year) and pay for stuff (like space, racks) more in advance + take into accounts delays in delivery. This is where cloud makes the job much faster for companies but given the slow pace at which gov stuff happen usually I don't think this is a problem for them.
The "let's be managed and only hire developers" is a huge myth. All large organizations involve tons of "cloud engineers" or "devops" depending on how they want to call them and are just sysadmins with a different name and a bigger paycheck.
Having actual datacenters doesn't add a ton of complexity and datacenters themselves are often managed by people who don't even have an engineer paycheck. The main difference between being on prem vs cloud is you have to plan (how many servers/storage/network equipment you have to buy and replace on the following year) and pay for stuff (like space, racks) more in advance + take into accounts delays in delivery. This is where cloud makes the job much faster for companies but given the slow pace at which gov stuff happen usually I don't think this is a problem for them.