They do. All the code they would have "Written" would have been done by offshoring teams in india or mexico or etc. These offshore locations only know specific technologies. A specific building in India, for example, may only know how to write WCF code that gets data from a SOAP call. Their Mexico building may genuinely only know how to write WPF applications.
To be clear, this isn't a knock against Mexican or Indian people. But the people working in these accenture buildings are literally writing code using windows notepad, in un-airconditioned rooms, and fired if they don't deliver on time.
They then, obviously, write buggy code, which Accenture then offers to fix to the client for an additional fee. They used to have onshore American developers responsible for being the white/professional face to the client, but they've since dropped that as well, and now only hire on a management level for that role.
The crazy thing is IBM consulting is worse. I've been forced to work with IBM .Net Consultants who didn't know what visual studio was. Not how to use it, but literally didn't know what it was. And when shown what it was, couldn't figure out how to start the installation process. Again, not install the whole thing, couldn't figure out how to double click Setup.exe.
The very best though, was a small consulting company that was competing against my Accenture project back at the time. He was, of course, also an Indian outsourcing company. But he came with the additional twist that everyone he hired as a developer was a woman from India, and was only on-site in the USA on temporary work permit.
He was the only man. So if they didn't do exactly what he said, he would kick them out of the country, and send them back to India. No potential for gross abuse there.
There are great offhsoring companies, but they don't work for offshoring rates. I now firmly believe that if your company is seriously looking at offshoring their technology for cost savings, it is not a competent technology company already.