This document outlines ways a librarian can help instructors address issues that arise mid-semester in online courses. It provides examples of common problems like students misunderstanding assignments, unengaged discussions, weak citations, and more. For each issue, it suggests solutions the librarian can implement like embedding library tutorials, research guides, citation instructions, and exemplars directly into the course. The goal is quick fixes to get courses back on track by directing students to tailored library resources. The librarian acknowledges limitations but aims to develop reusable solutions and track data to expand support over time.