Top-30 USC Trojans countdown: An instant-impact starter in the secondaryby:Erik McKinney•07/18/25•ErikTMcKinneyRead In AppUSC defensive back DJ Harvey at a spring ball practice with the Trojans (Erik McKinney/WeAreSC)A veteran cornerback addition makes the WeAreSC Top 30 countdown of most important USC Trojans, coming in at No. 17.