That's what I see -- it's going to be very tough for any team to compete against this pitching staff
The Cardinals starters have a collective ERA of 3.48 right now. The Cubs starters (including Zambrano) have a collective ERA of 2.97. I do realize that collectively the Cardinals have the best ERA in the league, but that is just because the Cub's bullpen has been awful and has been put into many pressure situations because of the Cubs lack of hitting. The Cubs are looking for bullpen help and have starters they can shop that many teams should be interested in.
I don't think anyone can argue against the Cardinals winning the Central at this point. I do doubt they will "run away" with it. We are 16% done with the season, and there are a lot of things that can happen between now and October 1. I feel like this is the first season in a long time the Cubs have gone the whole first month without a serious injury.