Will Universal coverage displace current health insurance policies?

The Wall St. Journal had an article on June 12, 2009 (http://online.wsj.com/article/SB124476642576608477.html) that indicates health plans are worried that a Government run health plan will displace them.

So whatever the Government does is fraught with opportunity and risk. The opportunity is the millions of uninsured will become potential customers, growing the market for health insurance. The risk is what if instead of creating a floor the Government options end up displacing some of the products offered by existing plans?

I am sure this will create enormous lobbying opportunities in the short-term and market and strategy options in the medium term. Government entering/expanding its role in the market is similar to boulder falling into a pool, we are going to have waves not ripples. Some plans are going to ride the waves and others are going to be lost...