Cubs want to improve their pitch framing, but not all pitchers and catchers understand - or care - how the skill is measured
(Chicago Tribune Religion News)

Jon Lester appreciates the overall skills of Willson Contreras, and the veteran pitcher has no use for the pitch-framing statistics that have downgraded the Cubs´ two-time All-Star catcher. `I still don´t understand that stat when the most important thing is the umpire, and he´s not in that equation,`...