TIRANA A leader of Kosovo's ethnic Albanians has criticized his colleagues in the disputed Yugoslav province for relying too heavily on the West to back their struggle with Belgrade. Bujar Bukoshi, who went into exile in Germany in 1992 after becoming prime minister of the self-styled Kosovo Republic, said the fate of the province lay in the hands of ethnic Albanians, an Albanian magazine reported on Monday. He said Kosovo politicians were naive to expect the West to intervene decisively in their campaign and any solution short of independence would be unacceptable.