3. Minnesota Twins
For the Twins, it's not so much that they haven't done anything, it's that they've lost a ton of talent from last year's division title team, particularly in the pitching department.
SPs Sonny Gray and Kenta Maeda, as well as RP Emilio Pagan are all gone. They've also lost some decent role players in INF Donovan Solano and OF Michael Taylor.
Now, the biggest issue for the Twins last year was the amount of injuries they suffered. They just couldn't keep guys on the field. That roster was way better than the 87 wins they ended up with. They should have at least won 90 games.
But so far, their only offseason addition has been RP Josh Staumont, who is admittedly a decent backend piece for the bullpen. They also have an influx of young talent, particulary in the infield with guys such as Royce Lewis and Edouard Julien. This had led to trade rumors surrounding Jorge Polanco.
If the Twins can stay healthy, they can still be a force to be reckoned with. But they really need guys like Carlos Correa and Byron Buxton to step up as well. They were both injured at times, but they are both too talented to perform as poorly as they did a year ago.
Lastly, they also need to replace the starters they've lost. They still have a solid three with Pablo Lopez, Joe Ryan, and Bailey Ober, but they can't go into the season relying on whatever they might have internally to fill out the rest of the rotation.