You cant name a world class team born/raised in yorkshire that's a ridiculous notion. There isn't even a world class XI born/raised in England.
As for "only ever" bringing in talent, you are wrong, depending on how far back you want to go will depend on how big the list of Surreys England internationals will be.
Well, I was born in 1977, so lets use that as an arbitrary cut off. How many England internationals have been born and raised by Surrey in that time? I skimmed the list of test caps and found, at best, 10 (those in capitals were genuinely "born and raised" the rest less so) - BUTCHER A, BUTCHER M, STEWART, BICKNELL, TUDOR, THORPE, Jackman, Ward, Clarke, Richards. Its not a bad list, but pales in comparison to the equivalent list of players Yorkshire has produced (deep breath) COPE, BAIRSTOW D, STEVENSON, ATHEY, SIDEBOTTOM A, MOXON, JARVIS, ILLINGWORTH, GOUGH, SILVERWOOD, Vaughan, HAmilton, HOGGARD, DAWSON, SIDEBOTTOM R, MCGRATH, PLUNKETT, BRESNAN, SHAHZAD, BAIRSTOW J, ROOT, LYTH, RASHID - and thats before you consider players like Batty, Cook, Whitaker, Mallender and Rhodes who came through our youth system before being poached elsewhere.