I would look at trading all of Dickey, Happ, and Buehrle for prospects. With Stroman and Hutchison both being great thus far, with Norris, and Sanchez not far behind, why not cash in the other 3 pitchers and fill some holes. We can always sign a pitcher or two in the offseason. I'm not sure I'd stop there frankly.
The Jays, while being near the top of the AL east, they have been in a real tailspin for the last month, and the holes that were getting covered by the hot streak are coming out to play and it doesn't look good.