Where can SF Giants improve their roster after Rafael Devers trade?

The SF Giants have made their big swing, trading to acquire Red Sox slugger Rafael Devers last weekend. With Devers now in San Francisco, the lineup has already been improved, but the Giants' roster is still not perfect. What could be next on the agenda for Buster Posey and the Giants?

Most likely, the Giants' next step will be to acquire a second baseman. As a team, the Giants rank 27th in OPS from second baseman, at just .586. Their .305 slugging ranks 27th, as does their .281 OBP. It is clear that something needs to change.

Where SF Giants can improve after Rafael Devers trade

Tyler Fitzgerald, who has taken the majority of the reps at the position this year, does have 1.2 bWAR despite his 83 OPS+. Strong defense has helped Fitzgerald stay in the lineup. Christian Koss, who has made 20 starts at the position, also has a slightly positive bWAR of 0.6, but his OPS+ is currently sitting at 59. The Giants sat Fitzgerald on Friday night in favor of Koss which shows they are trying to figure out who their best option is at the position.

The Giants really cannot afford to have Fitzgerald and Koss continue playing second base down the stretch. While their defense might be keeping them afloat, it is not worth the hole in the lineup. With the Giants in the thick of a postseason chase, this will likely be their next move. There are several interesting candidates the team could trade for to try and get more production at second base.

San Francisco will also likely need to acquire a starting catcher. Patrick Bailey has returned from the injured list but has so far been almost worthless offensively. He sports a 52 OPS+ and has been worth 0.3 bWAR in 2025.

As a team, the Giants catchers rank 28th in batting average (.181), 30th in OBP (.243), 29th in slugging (.280) and 28th in OPS (.523). As much as the team might like Bailey's glove, an upgrade here also feels necessary.

Judging by San Francisco's aggressive pursuit of Devers, it feels like the team is going all in to win in 2025. If that is the case, expect a new second baseman and catcher by the time the trade deadline rolls around in late July.