If an agency does not retain such inhouse in Outsourcing Most or All resources and capabilities, agencies risk the following  of Their Design Review
If some things are not retained inhouse, agencies are putting Their Design Review at risk.
All agencies are free to outsource their resources and capabilities because there are no risks.
A girl sleeps on the couch in front of a TV.
Each body's diet is different.
There is no snow outside.
A girl in a blue cap plays softball.
In order to do a good job a graphic editor would have to spend close to half a month.
a man in a hat