The pen will absolutely be better. It wouldn't be a stretch to say they'll be better than average.
The offense believe it or not should improve. Tejada should improve, Ike will be healthy for a full season, Murphy should bounce back, Wright is Wright, and Buck is better than Thole. d'Arnaud is not far behind.
We have a young team and offense with possible effective platoons. If we got Bourn, we are definitely an 80-85 win team imo.