Cubs v Pirates, are we backing Pittsburgh?

The site model calls Pittsburgh at 2.04 because they arrive on a strong four game winning run despite a recent setback and look ready to handle the Chicago Cubs at Wrigley Field. That price offers decent value against a home side struggling badly for momentum. On the other hand, Pittsburgh failed to sustain their winning streak in their most recent outing which proves they are still capable of putting in a poor shift. What are you all on for this one?