Other faculty members, especially those in the Natural Sciences, have an incentive not to teach Gen Ed courses. They report finding it difficult to recruit qualified teaching fellows, as graduate students are generally funded by grants to support research. In many cases, the level of compensation provided by the College for teaching is inadequate, so that graduate students with a full teaching load must also be partially supported by research funds. This produces a tension between teaching and research demands, and serves as an effective disincentive for advisors to allow their students to teach.