It should not be very surprising the offense is flashing warning signs at the moment.
Two of the team's top-two home run hitters (Tyler O'Neill and Paul DeJong) are out with injuries, and the home-run leader (Arenado) has hit a bit of a skid.
Carlson hasn't been hitting. He's been sitting. Just got back from the back scare.
The last few lineups have been pretty rough because of who is available and who is not.
This looks like an offense that can find ways to do enough when healthy.
It does not look like an offense that can do enough when Molina is hitting cleanup and the production falls off a cliff after that due to multiple homer-hitting bats being hurt.
As much as people like to bang on O'Neill and DeJong, they hit home runs and this team tends to win when it hits home runs. The Cardinals have just one in their last five games.
And yes, the Cardinals are going to struggle if Arenado struggles.