From the given sentence, extract the phrase (often noun or verb) that carries the given relationship. The generated phrase should be present in the sentence.

Given Relationship: 'be lead by', Sentence: 'Follow Mrs. Alvarez , the Health Center director , as she leads her team of staff and users through the complete quality improvement process in a clear and easy-to-follow illustration of how to integrate all the topics , concepts and tools presented on this site .'
leads