The Seattle Mariners have overtaken the New York Mets as Major League Baseball's most disappointing team, according to recent assessments. This shift comes as the Mets have experienced a recent surge in performance, improving their standing and moving off the bottom of that particular list.

The Mariners, who were considered a favorite to win the American League West, are currently struggling with a 68-78 record and a negative-75 run differential, which is worse than that of the Los Angeles Angels. Despite having what was considered an easy schedule to close out the season, including 22 consecutive games against losing teams and 19 against the Rockies, Angels, and Athletics, the Mariners have faltered.

The team's struggles have been evident in their performance. Starting pitcher Logan Gilbert, who was part of the Mariners team that reached the World Series last year under manager Dan Wilson, has seen the current season described as a significant disappointment. Some observers believe that substantial changes are likely within the organization.

An earlier attempt to address the team's offensive issues by firing an assistant hitting coach did not yield the desired results, as the offense has reportedly worsened since the change.

Another team mentioned in the context of disappointment is the Detroit Tigers. Their bullpen has been a point of weakness, undermining a positive run differential of plus-55 and contributing to their 67-79 record. While manager A.J. Hinch is reportedly well-regarded and expected to return, there is speculation about the Houston Astros potentially having long-term interest in him for a general manager role, though this is considered a more distant possibility.

Seattle Mariners' Julio Rodríguez reacts during a strikeout.