The Cubs play 25 games in September. 9 of them are in Wrigley, for which there truly is no substitute. However, 6 more are in venues where the Cubs are extremely well represented(St. Louis, Milwaukee). And another 3 are in a nearby city(Cincinnati) that will likely be dominated by Cubs fans since they'll be in the hunt and the Reds will have nothing to play for. That leaves the Mets series and the Astros(who also will have nothing to play for) as the only true hostile environments the Cubs face that month. After the way things went down at the Cell, I can't help but think that having fans on the road or being away from Wrigley but still near by will compensate for being away from Wrigley itself.