Pena figures out Cubs’

ST. LOUIS — A few days ago, Cubs pitcher Carlos Zambrano said he wanted changes made to his struggling team, refusing to specify. A day later, teammate Aramis Ramirez said he expected personnel changes.

And Sunday — after he survived the non-waiver trade deadline still in a Cubs uniform — Carlos Pena said the bigger changes needed were ''intangibles,'' including improved ''chemistry.''

''I'm talking about our culture, our way of being, our way of thinking, our energy,'' Pena said before the Cubs snapped a five-game losing streak with a 6-3 victory against the St. Louis Cardinals. ''It takes a little bit of time, but with . . . the talent we have, there's no doubt about it. …