Look at the teams we have put onto the field. Does it really matter? No. The teams we put out there weren't going to win anyways. As I have already stated, it ultimately comes down to the product you put onto the field day in and day out.
Advantage: oh we have the only store in the hood... harmful effect of advantage: but we get robbed 4 times a week.
Advantage: we hire illegal aliens to work for us at $2/HR... harmful effect: the INS caught up with us and now we are facing 5 times our annual revenue in fines... as well as prison time.
Advantage: we shipped all of our assembly operations overseas to avoid high priced unions and American workers' salaries... harmful effect: not enough Americans can afford to buy our crappy cars.
Advantage: we play 60 games a year during the day to screw with our opponents' biological clocks... harmful effect: our own players' biological clocks are messed up even more... and we make about 2/3 the revenue during the day that we can at night.
I don't think you can call something an advantage when it harms your revenue potential... which means your payroll potential... which means your talent potential. It's simple fact, when you play at night you expand viewership of the games on TV. This means higher advertising revenue, which results in larger payouts during broadcast negotiations. You play at night, you make more money. The more money you make, the more you can spend on payroll, coaching, scouting, and development.
This notion of playing games during the day because other team's aren't used to playing at that time works both ways. If the Cubs have this advantage, then every other team has an advantage over the Cubs when they play at night... for the same EXACT reasoning. Also, it hurts the team even more. You come home from a 6-game road trip, play the next day at home during the day... while the other teams NOT playing in Wrigley don't exhaust themselves that little extra bit by playing hours later. It's not a new phenomenon that the Cubs fade in September.... even when putting together good teams. The 2007-08 season you love to point out as being huge successes... those guys looked awfully damned worn out by the last two weeks of the season... and had NO energy in the playoffs.