> Senior designers [from top agencies in the UK] are very very often from abroad This is unsurprising in itself. About 40% of London residents are foreign bor

> Senior designers [from top agencies in the UK] are very very often from abroad This is unsurprising in itself. About 40% of London residents are foreign born, and in any international industry, the chance of top talent being from the same country as the hiring company is low for obvious statistical reasons. You can see a similar effect in e.g. academia.