Three celebrations

In Paul Turner's Blog by Paul Turner

Q:  It has always been my understanding the the three celebrations – Holy Thursday, Good Friday, and the Easter Vigil – are considered one liturgy, thus the presider should be the same throughout. I was looking for rubrics or directions that would say that, but I can’t find anything. Can you please comment or point me in the right direction?

A:  There’s no such rule. The liturgies really are independent. They have some logical and theological flow, but there’s no problem with using different presiders during the Triduum.