We wouldn't have hired you if you didn't. The students will learn from you from your collective wealth of knowledge. Your risk is with technology, not the theory. For example, in my field, I have found several texts which treat mediated communication as an integrated and chapter focused topic. The books include links to the publisher's and author's favorite sites.
Some texts are fully available online.
Tests, assignments and videos can be easily accessed by our students when we choose such texts. I use these resources in my on-line syllabus also. No, I feel confident that my materials are well adapted and firmly grounded in my teaching philosophy. However, I will look more at what is freely available to me before I fully prep another course. Also, it is helpful to have someone in your field compile a list of relevant links.