From the beginning of his administration, Boyle faced significant opposition from rank-and-file miners and UMWA leaders. Miners' attitudes about their union had also changed. Miners wanted greater democracy and more autonomy for their local unions. There was also a widespread belief that Boyle was more concerned with protecting mine owners' interests than those of his members. Grievances filed by the union often took months—sometimes years—to resolve, lending credence to the critics' claim. Wildcat strikes occurred as local unions, despairing of UMWA assistance, sought to resolve local disputes with walkouts.