“Obviously the Cardinals were used to one guy behind the plate for close to two decades,” Mozeliak said. “The nuances of that position, maybe very subtle, are what a lot of our pitchers were used to. What we were seeing was a lack of confidence. Normally, you would say, why didn’t you address this in spring training? But in spring training, it’s so different in terms of what people are trying to work on. Pitchers are going a couple of innings. It doesn’t really count.
“With this, we’ve noticed a lot of puzzling trends we know we need to fix. We know we need to address it. … We just decided to do it head on, put it out there. Do we think we’ve seen Willson catch his last game? No. But this is going to take a little time to get him to where we feel he understands the expectations of what this role is for us.”