By Monica E. Oss, Chief Executive Officer What a difference a few decades make. Since the start of OPEN MINDS, we've been writing about why behavioral health matters to the overall health of consumers–and to overall health care spending. We published many analyses of why "parity" for behavioral health services wasn't the "budget breaker" that opponents thought. For more on our early parity cost-benefit analysis work, check out Costs of Parity Act Likely to Range From 0.9% to 3.7%: Parity Act Costs Dependent on Health Plan Structure and The Cost of Mental Health Parity: Calculating the Dollars & Sense. The Affordable Care Act brought the U.S. health…