Before 2019, the backup catcher position had been one that the St. Louis Cardinals had to devote less attention to than any other team in the MLB over the past 10+ years. Yadier Molina and his iron knees aren’t a luxury every team is graced with, so we can consider the Cards lucky that they have the catcher who has caught more innings than anyone on the planet in the last 10 years.
However, going into 2019 Molina was getting to the point where his body might decide to defy his wishes and so the Cardinals put more effort into finding a backup catcher.