We have Tradition within the "pillar and ground of truth".
A pillar holds something up, it does not make infallible decisions
The Church is to hold up the word of God, not make it up :)
It supports and preserves the word of truth. That Pillar stands on Christ. " Christ is the alone ground of the truth in the highest sense" (1Co 3:11)
The Church is the support and preserver of the Truth of Christ and His word.. This one reference to the church as the pillar and ground of truth has nothing to do with God giving over His attribute of infallibility to a man or an organization