The 2019 Seattle Mariners had a lot of warts and that was by design. The team was never built to be well rounded, nor good for that matter. But in one area, that team was worse than almost anybody could have imagined. The 2019 Mariners may have been the worst defensive team of all time.
Think back to the Opening Day defense in Japan. Particularly in the infield. Omar Narvaez at catcher, Jay Bruce at first base, Dee Gordon at second, Tim Beckham at SS, and Ryon Healy at third base.