BANGALORE: For the growing number of executives leaving storied companies to join alluring new start-ups, the lush green grass they saw on the other side, upon closer examination, reveals some withered brown tufts. Being used to the perks and privileges that usually come with working for large corporations, such managers are finding that they are required to make do with shoestring budgets and do-it-yourself kits while coping with the pangs of anonymity. In theory, they knew what they were getti