After going over best/worst leveraged careers and single seasons in the first two articles, how ’bout we figure out how important it was, and how much it impacted pitchers’ stats?

A book review of Joe Posnanski’s new book about the one and only Buck O’Neil.

Having looked at the best and worst leveraged careers in Part I, now it’s time to find out what were the best and worst leveraged single seasons in baseball history for starting pitchers.

Or How I Learned to Stop Worrying About and Love Ken Heintzelman.

What can historical data about teams over and underperforming their talent tell us about managers?

Guest writer Chris Jaffe looks at how players perform when revisiting teams that traded them.