[RayChuang88]

I still think, however, that the Cubs from now on to be really successful contenders, they need to play far more night games at Wrigley Field--possibly as many as 50 games.

Former pitcher Curt Schilling surmises (correctly) the reason why: because the Cubs play most of their home games during the day, the biological clocks of the Cubs roster is different then other MLB teams. As such, once they reach the playoffs, the team ends up playing poorly when most of the games are in the evening hours.

[Artemis Webb]

The schedule will probably change, but it will almost certainly be gradual. There are still a lot of Cubs fans who believe lights are the tools of The Devil.