This off-season is unlikely to be a very important one in the history of the Kansas City Royals. At least, not in terms of the results of the following season. It could be a very important off-season for the 2025 season, though.
The Texas Rangers won the 2023 World Series after losing 102 games in 2021. They immediately went out and signed two of the best free agents available, Corey Seager and Marcus Semien. They further added Jon Gray and went on to trade for Mitch Garver and make a few other, smaller signings. It does not seem like a stretch to say that while those moves seemed worthless in the immediate aftermath - the Rangers still lost 94 games in 2022 - they were vital for the Rangers in 2023.