Given the question: Given the following passage "First, the Yongying system signaled the end of Manchu dominance in Qing military establishment. Although the Banners and Green Standard armies lingered on as a drain on resources, henceforth the Yongying corps became the Qing government's de facto first-line troops. Second, the Yongying corps were financed through provincial coffers and were led by regional commanders, weakening central government's grip on the whole country. Finally, the nature of Yongying command structure fostered nepotism and cronyism amongst its commanders, who laid the seeds of regional warlordism in the first half of the 20th century.", answer the following question. Note that the answer is present within the text. Question: How were the Qing Goverment's de facto first-line troops sustained before changing their name?
The answer is:
through provincial coffers and were led by regional commanders