While this has been an eventful offseason that has seen many teams make significant additions to their rosters, there are still clubs that have plenty of work to do before Spring Training.

A handful of playoff hopefuls either haven't moved the needle enough with their offseason moves, or simply haven't done much at all. But with plenty of quality free agents still available -- along with some intriguing potential trade targets -- there's enough time left this offseason for these teams to flip that dynamic.

With that in mind, here are eight clubs that have the most work to do before the 2025 season gets underway.

Mariners

For a Mariners team that averaged 88 wins a season from 2021-24 but fell just short of the playoffs in three of those seasons, the lack of activity has been interesting -- especially for a team assembled by the always-aggressive Jerry Dipoto. In fact, Seattle hasn’t signed a single player to a Major League contract this offseason.

The story remains the same for a Mariners team that features an elite rotation, stellar bullpen and an offense that struggled to score runs last season. There’s reason to believe in rebounds for players such as Julio Rodríguez, Randy Arozarena and J.P. Crawford, but the Mariners could still use another bat or two. Free agent Ha-Seong Kim would be a sensible option for Seattle at second or third base, but Seattle could always opt to trade from a strength (starting pitching) to land a difference-maker at the plate. With the AL West more winnable than it’s been in years, now is the time for the Mariners to push for its first division title since 2001.

Blue Jays

It’s seemingly now or never for the Blue Jays on multiple fronts. On the heels of a disappointing 74-win season and last-place finish in the AL East, Toronto enters this season in a precarious situation. Two of its franchise cornerstones -- Vladimir Guerrero Jr. and Bo Bichette -- are pending free agents who could leave next winter if they don't sign extensions first. Factor in the Blue Jays falling short in the Shohei Ohtani and Juan Soto sweepstakes in each of the last two offseasons, and you can feel the sense of urgency increasing. (Toronto also just missed out on Corbin Burnes before he went to Arizona.)

Outside of a big trade for slick-fielding second baseman Andrés Giménez, the Blue Jays haven’t done much to fix a roster trying to climb its way back in a hypercompetitive division. Without more moves on the horizon, it could be tough for Toronto to make it back to October before it faces the prospect of its window of contention shutting. However, the team is still being connected to some of the biggest free agents who remain available, so time isn't up just yet.

Orioles

The sense of urgency in Baltimore is not quite the same as it is in Toronto, but there’s definitely a feeling that the Orioles need to start pushing in more of their chips now. The Orioles won 193 regular-season games from 2023-24 -- trailing only the Dodgers and Braves -- but don’t have any postseason wins to show for it. After losing Burnes to the D-backs in free agency and with Anthony Santander also expected to sign elsewhere, the Orioles could be without two huge keys to their success from last year.

Baltimore has been fairly active this offseason, signing Tyler O’Neill and Gary Sánchez on the offensive side of things, while beefing up the rotation with 41-year-old Charlie Morton and 35-year-old Tomoyuki Sugano, who made the jump from NPB. But is that enough given how much the Orioles could lose in free agency and how good the AL East is? Time will tell, but the Orioles certainly could do more to capitalize on their wave of young talent that continues to push its way into the Majors.

Guardians

Few teams have been as active as the Guardians this offseason. That doesn’t necessarily mean Cleveland has improved, however. Gone are Giménez, Josh Naylor, Matthew Boyd, Alex Cobb and Eli Morgan. Replacing them are Carlos Santana, Luis L. Ortiz and Slade Cecconi. Shane Bieber also re-signed with Cleveland and is expected to return sometime this season after undergoing Tommy John surgery last April.

The Guardians have lost some integral members from a division-winning club, and on the surface, at least, it's not clear they have found adequate replacements. Of course, Cleveland has rightfully gained a reputation for player development and getting the most out of its rosters, but there’s still a drop-off in proven talent. With the Royals and Tigers both making the playoffs last season and showing they’re for real, the gap between those two teams and the Guardians has arguably shrunk.

Padres

In all fairness, the Padres just had a great season and are returning most of their roster for 2025 -- only Jurickson Profar and Tanner Scott (a Trade Deadline acquisition) hit free agency this offseason. But with the Dodgers continuing to add more talent to their roster, and the D-backs and Giants both making significant moves, San Diego may need to counter to keep pace in the NL West.

Bringing back Profar would be a start, as he had a career year in ‘24 and is seemingly the perfect fit at the top of that lineup. Beyond that, the Padres’ rotation is dangerously thin, with Joe Musgrove set to miss all of 2025 after having Tommy John surgery. To supplement Dylan Cease, Michael King and Yu Darvish, the Padres could benefit from, say, a Roki Sasaki-type addition.

Astros

Could the Astros' run of excellence be coming to an end? After a remarkable stretch of eight straight playoff appearances -- including World Series titles in 2017 and ‘22 -- Houston has slowly begun losing talent. Following the trade of star right fielder Kyle Tucker and the likely departure of third baseman Alex Bregman in free agency, the Astros will be down two key members of their core.

To Houston’s credit, the club is filling that void with third baseman Isaac Paredes (from the Cubs) and first baseman Christian Walker (via free agency). But is that enough? Without the Astros' usual star power, there’s a lot more emphasis on Yordan Alvarez and Jose Altuve remaining their excellent selves to mask a lineup with depth issues and more rotation uncertainty than we’re used to with Houston. It’d be naïve to count the Astros out -- they could very well take a winnable AL West division -- but making more moves would help ensure they keep their window open for at least another year.

Giants

The Giants signed shortstop Willy Adames to a seven-year, $182 million deal -- the largest contract in franchise history -- and were reportedly one of the top bidders for Burnes before he signed with Arizona. Even with the Giants aggressively trying to improve their roster, it’s a steep climb to reach the Dodgers and Padres and arguably the D-backs. With new president of baseball operations Buster Posey showing he's not messing around, there’s still a chance the Giants can make more significant moves this offseason.

That could be in the form of the slugging Pete Alonso -- whom the Giants reportedly have on their radar -- which would immediately give the club a 30-plus-homer threat in the middle of the order. Perhaps San Francisco could look to add a starter such as Jack Flaherty to bolster the rotation. For the Giants to reach the playoffs again, they’ll likely need another bold free-agent signing to put themselves in the mix.

Reds

After hovering around .500 for the last two seasons, Cincinnati has not noticeably improved the roster this offseason to change that fact. Sure, the Reds swapped second baseman Jonathan India for starting pitcher Brady Singer and reliever Fernando Cruz for catcher Jose Trevino, but it's hard to say that those moves have altered the club's outlook significantly. As currently constructed, the Reds are probably a notch below the likes of the Brewers and Cubs.

That doesn't mean there's not a lot to like about aspects of Cincinnati's roster. The team's rotation and lineup (led by Hunter Greene and Elly De La Cruz, respectively) both feature a lot of young talent that could take steps forward under the guidance of new manager Terry Francona. But without another big addition in free agency or via the trade market, the Reds run the risk of hovering around the .500 mark again.