Sophisticated genomics-based tools will transform cancer care in the coming decade. This paper investigates what will drive this transformation in oncology. Next-generation sequencing (NGS) will play a key role by providing a deeper understanding of cancer's molecular complexity through genomic techniques. NGS allows researchers to sequence entire genomes, exomes, and RNA to identify biomarkers and explore features like single nucleotide variations, translocations, and copy number variations. While NGS provides powerful approaches, its application requires an understanding of each platform's capabilities and limitations to obtain reliable results.