I would actually go Santana and Scherzer. You have a solid foundation at SP already, and Scherzer offers more upside than Dickey. Take a look at Scherzer as the year progressed, and the K's you would get from Verlander, Stras and Scherzer combined? Good luck rest of league.
Also for reference, I think Adrian Gonzalez is better suited for you in the IF position than OF, but that's just me
Semantics for now.