The clinical practice of oncology has become increasingly complex. An explosion of medical knowledge, increased demands on provider time, and involved patients have changed the way many oncologists practice. What was an acceptable practice model in the past may now be relatively inefficient. This review covers three areas that address these changes. The American Society of Clinical Oncology (ASCO) National Oncology Census defines who the U.S. oncology community is, and their perceptions of how practice patterns may be changing. The National Cancer Institute (NCI)-ASCO Teams in Cancer Care Project explores how best to employ team science to improve the efficiency and quality of cancer care in the United States. Finally, how physician assistants (PAs) and nurse practitioners (NPs) might be best integrated into team-based care in oncology and the barriers to integration are reviewed.