Chicago Cubs defeat Milwaukee Brewers, 9-5

Chicago — It was a question on the minds of many as the Milwaukee Brewers and Chicago Cubs began a four-game series Thursday night at Wrigley Field.

Which was the bigger liability: the Cubs' underachieving offense or the Brewers' paper-thin starting rotation?

For one game, at least, the answer was clear-cut. The Brewers might want to accelerate their pursuit of a starting pitcher.

With Derrek Lee leading the charge with a three-run home run and grand slam, the Cub...