Mr. Thompson generally hasn't even been part of any polls up to this point, so your insinuation is moot at this point in time.
You are going to have a rude awakening when the polls with his name do come out. I've seen some intraparty polling that shows him in the single digits as a potential candidate. He has face recognition but not name recognition, so will have to spend quite a bit early on to get name recognition.
He's will not run because he is politically astute enough to see that he cannot win. Gingrich same thing. Giuliani is running about 40 percent in the primary right now. Once he gets to 50 he is in for certain. It will happen before the spring is out.