MLB fantasy baseball analysis: bullpen volatility and hitter metrics

As the MLB regular season nears its conclusion, fantasy baseball managers are navigating volatile bullpen ecosystems and evaluating hitter performance through advanced metrics.

In Washington, the team has set a new MLB single-season record with 38 blown saves. Meanwhile, the Arizona Diamondbacks' bullpen remains fluid, with Juan Morillo recently receiving a save opportunity and Justin Martinez positioned as a potential future closer. The Los Angeles Dodgers have utilized a diverse group of relievers, including Tanner Scott, Jack Dreyer, Edgardo Henriquez, and Evan Phillips, to secure saves over recent stretches.

The Chicago Cubs are also facing bullpen instability, with Jacob Webb and Daniel Palencia struggling to maintain consistency. Manager Craig Counsell is looking for improved execution as the playoffs approach.

On the offensive side, analysts are utilizing Decision Value (DV) to evaluate hitter swing decisions. This metric goes beyond standard plate discipline by analyzing pitch velocity, location, and movement to reward hitters for swinging at high-damage pitches and taking those unlikely to result in quality contact.