It says nothing about Ron. He knew Rand had more of a shot to make the bigger changes. Rand is extremely well spoken and benefits from 40 years of Paul family name credibility within the liberty movement, without being hampered by Ron's reputation with the far right. Plus, he just happens to be younger and more attractive to some of those marginal voters who just aren't as concerned about the actual policies. My wife and my sister agree with me when I tell them about Ron's policies, but neither go excited until they heard those same policies from Rand.
Free market capitalism isn't right for America because it works better. It's right because it's free (and it works better).