But buying abroad comes with its own risks - difference in league quality, adapting to new environment, adapting to new style of play etc. Brighton seem to be good at identifying talent and Forest. Every transfer is a risk.
I'm not arguing we shouldn't be looking abroad but you can see the benefits of shopping locally.
Although that can fail - Sterling, Dewsbury hall, kalvin Phillips, nketiah etc. Most of these guys were doomed to fail for various reasons: age, big club tax, Chelsea, declining...
It's a difficult job that's for sure, even proven players like fullkrug drop here and completely flop.