Some years ago, my friend Msgr. Francis Mannion wrote an article concerning the three essential features of the Eucharistic liturgy — namely, the priest, the rite, and the people.
When these elements are in proper balance, rightly ordered liturgy obtains.
Further, from these categories, he argued, we can discern the three typical distortions of the liturgy: clericalism (too much of the priest), ritualism (a fussy hyper-focus on the rite), and congregationalism (a disproportionate emphasis on the people).