However, if Simon spent $10 million this summer to re-introduce himself to the people, it would be $10 million wasted. The people don't want to hear about it now. They will later.
I've run numerous campaigns (locally) and know that people are far more receptive to messages delivered after Labor Day than before. In 2000 I ran a campaign and we were walking precincts in the summer, working hard, doing phone banks, going to meetings, and NOTHING happened to excite anyone about the candidate until AFTER Labor Day when interest increased a hundred-fold, we had volunteers and phoners etc.
It's Simon's team's job to work the grassroots now, which isn't as visible. I think he's doing it.