Final answer:
Native Americans had mixed views on Collier's plans and leadership. Some criticized his methods and the conflict with traditional governance, while others appreciated his efforts to restore Native sovereignty and provide employment opportunities.
Step-by-step explanation:
Some Native Americans disapproved of Collier's plans and leadership because of the high-handed methods he used and the conflict between the BIA's style of elective government and the traditional methods of self-government of many tribes. These criticisms limited the effectiveness of the Indian Reorganization Act (IRA). However, Collier is also revered for his intent to restore Native sovereignty and his efforts to provide employment opportunities for Native Americans through programs like the Indian Emergency Conservation Program (IECP). It is important to consider both perspectives when evaluating Collier's impact.