Can corporations shift workers with high medical costs from the company health plan into online insurance exchanges created by the Affordable Care Act? Some employers are considering it, say benefits consultants. "It's all over the marketplace," said Todd Yates, a managing partner at Hill, Chesson & Woody, a North Carolina benefits consulting firm. "Employers are inquiring about it and brokers and consultants are advocating for it." And the health law might not prohibit it, opening a door to potential erosion of employer-based coverage. "Such an employer-dumping strategy can promote the interests of both employers and employees by shifting health care...