(CNN) -- Some of Thomas Harte's New Hampshire neighbors are frustrated by the Affordable Care Act's insurance marketplaces but not for the reasons you might expect. Harte is an insurance broker. He still has his share of frustrations with the marketplace websites, but the growing number of complaints he hears come from clients and fellow brokers who have seen the policies these marketplaces offer. Nationally the marketplaces offer tens of thousands of different policies with a wide variety of coverage, but Harte has noticed many have one thing in common: They cover a narrow network of doctors and hospitals. That...