Trying to pick out improvement over a 2-start sample is a fool's errand. IMO all we can say is the following:
- On the whole, he's been awful this year, and not worth a rotation spot.
- His stuff looks like it should allow him to not be awful.
- His last two starts were of major league quality.
So his last two starts have been good, but even AAA quality arms will throw good starts on the board 3 times in 9 starts, which is what Sanchez has done. It doesn't necessarily point to improvement, but that becomes more likely with every good outing.