At Google there are two layers of the hiring process. Interviewers provide information for the hiring committee. The hiring committee has the resume. They don't need people to read it to them.
I'm not following. Why would someone read the resume to someone else?
There's actually not a whole lot of reason for me to look at their resume. The group who makes hiring decisions has it, so my interpretation of it won't be that valuable. Potentially I could ask them to elaborate on some of their prior work or projects, but that's usually less meaningful than just asking technical questions.