The Braves Build Bullpen Depth, Adding Mark Melancon
The Atlanta Braves continued their deadline bullpen upgrades by acquiring relief pitcher Mark Melancon from the San Francisco Giants for pitchers Tristan Beck and Dan Winkler.
Coming into today, the ZiPS rest-of-season projections for the Braves, when combined with the FanGraphs depth charts, had the Braves with the No. 19 bullpen in baseball, ahead of only the Phillies, Nationals, and Angels among the plausible contenders. ZiPS is also the more optimistic of the two systems; when you combine ZiPS and Steamer on the FanGraphs Depth Charts, the Braves drop to 22nd.
There’s a misconception that Atlanta’s relief woes are because of Luke Jackson, the team’s closer for most of the season. It’s true that Jackson has only saved 17-of-24 games for the Braves, but save percentage is actually a rather poor predictor of future save percentage, especially when other metrics exist (ERA, FIP, batter OPS, pretty much anything else). Melancon and Jackson are in roughly the same tier performance-wise, along with Shane Greene; the reason the trade improves the team is because it improves the depth of the bullpen, which was a significantly larger problem than the closer himself.
San Francisco trading Melancon (and Ray Black, Sam Dyson, and Drew Pomeranz) does not represent the Giants throwing in the towel on the 2019 season. Prior to these trades, the ZiPS/Steamer combined projections had San Francisco with eight relief pitchers projected to have a FIP below four over the rest of the season. The Giants still retain five of them (Pomeranz was not on the list), more than enough pitching to cover high-leverage relief innings. The team has an improving farm system, but that’s largely due to the first-tier talent at the top of their prospect list: Joey Bart, Marco Luciano, Heliot Ramos, and Hunter Bishop. Much like the Braves’ bullpen prior to today, what the Giants’ system still lacks is depth. Read the rest of this entry »