My memory does n't go back all that far .
I have a really hard time remembering the last high school pitcher who improved more over the course of a single season than Karsten Whitson has in 2010 .
My memory does n't go back all that far , but I have a really hard time remembering the last high school pitcher who improved more over the course of a single season than Karsten Whitson has in 2010 .