”The shortage of mental-health providers in the U.S. has long been considered a significant problem. But it is becoming more acute as people are encouraged to seek treatment, or find they are able to afford it for the first time as a result of new federal requirements that guarantee mental-health coverage in insurance plans.

”That’s prompting a sea change in attitudes among mental-health advocates, who are starting to look at solutions that are broader than just training more psychiatrists.”