In a bid to boost game efficiency and showcase star pitchers, Major League Baseball (MLB) is reportedly considering the implementation of a six-inning minimum for starting pitchers. The move comes as only 21 pitchers have completed games this season, with the Toronto Blue Jays' Kevin Gausman and Atlanta Braves' Max Fried being the sole players to achieve this feat more than once.

The potential change would signify a significant shift in how starters are currently utilized in the league. Over the past 15 years, teams have focused on improving the efficiency of their starters, leading to a decline in pitches per start, according to analysis by FanGraphs' Ben Clemens. The six-inning minimum would further aim to prolong the presence of star pitchers on the mound, enhancing the quality and excitement of the game.

The proposed alteration would also put an end to the experimentation of openers, a strategy first employed by the Tampa Bay Rays during the 2018 season. This approach involves using a reliever as the starting pitcher to face the top of the opponent's batting order before transitioning to the primary starter.

Although the idea of a six-inning minimum is not currently in effect, there is a belief that MLB could seriously consider this change in the future. Notably, MLB has previously shown its willingness to take drastic measures when it deems it necessary for the betterment of the game. The introduction of the pitch clock before the 2023 season stands as a prime example of such a seismic action.

MLB could potentially adopt other methods to incentivize longer appearances from starting pitchers, such as implementing a rule mandating a five-batter minimum for relievers, as suggested by Arizona Diamondbacks general manager Mike Hazen. This would discourage frequent bullpen changes and further encourage teams to rely on their starters.

In the event that MLB decides to move forward with inning minimum requirements for starters or relievers, a potential testing ground lies in the Atlantic League. This independent league has previously accommodated MLB's testing of new rules before their adoption at the Double-A or Triple-A levels.

The ultimate goal of these potential changes is to maximize the presence of star pitchers on the mound and increase their frequency of appearances. While the six-inning minimum proposal is still speculative, it exemplifies MLB's dedication to enhancing the game and ensuring a captivating experience for fans.