Let's use a real world example. Take our starting pitcher, Todd Schroeder. Erik traded for him because he thought he would perform well as a SP for us, given his 8 stuff / 10 movement / 7 control and three pitches all rated 8. He did indeed, starting 20 games, throwing 117 innings to a 3.31 ERA with a 1.23 WHIP. After the migration, he does not look like the same player. I am trying to allay Erik's concerns.
Todd's stuff post-migration is a pedestrian 5. But given what we know about pre-migration Todd, let's use our graphs. Here's the Stuff graph with Todd's information superimposed:
We now confidently locate his Stuff between percentiles 58 and 71. It's clearly above average, not at all in the 30-58 percentile range that the rest of the new 5 rating encompasses.
His Movement has plummeted from 10 to 6. On the face of it, this is a ghastly change, especially given the Blazers' emphasis on keeping the ball in the park when we are on the road. Let's see what we can learn from the Migration Graph:
Whew! It looks like his movement is between the 89th and 96th percentile. This is rarefied air, and certainly no cause for concern.
Finally, let's consider his control, which dropped from 7 to 5.
Our graph places his control between the 71st and 73rd percentiles, the very tippy-top of the 5 range. This is very good news.
Perhaps Todd can still be a useful rotation piece for our Blazers.
