Carlos Santana seems to have won over the Minnesota Twins' fan base. After a slow start, he has hit well and has been given credit for being an outstanding defender at first base. Santana has been among the most durable baseball players among active players and has logged regular time for fourteen consecutive seasons, logging more than 500 plate appearances each season.
Since becoming a free agent after the 2017 season, Santana has changed teams often--Philadelphia, Cleveland, Kansas City, Seattle, Pittsburgh and Milwaukee and lastly he signed late in the off season with the Twins. At each stop, he was well regarded, but teams have chosen to look for other options at first base. The seeming answer is that Santana has a well-established floor, but really no ceiling. In looking a little deeper, Santana has notable platoon splits, hitting better against left handed pitchers every year since he had his first free agent contract. His productivity from the left side has been below average more often than not. Since he is a first baseman, better hitting should and could be found to replace him.
In other threads, posters have made mention that Santana should be signed again to man first base in 2025. His contract this season was very reasonable ($5.25M for the season) and I would think that he'll be looking for more after defying Father Time for another season. I remain skeptical of relying on a 39 year old, who is not above average against three quarters of pitchers. At some point, Santana will fall off. If he were to agree for a similar contract and less than full-time duty, it might be worth it to bring him back.