Colorado officials vowed to improve oversight of the managed-care portion of the state’s $10 million Medicaid program after a federal audit found poor safeguards against waste, fraud and abuse. Federal regulators reviewed the state’s supervision of managed care programs that subcontract with the Colorado Department of Health Care Policy and Financing to provide care to patients. The audit by the federal Centers for Medicare and Medicaid Services reviewed Medicaid spending at three managed care programs in the state.