USC head football coach Lincoln Riley isn’t ashamed to admit it — the Trojans’ coaching staff is well-versed on college football’s transfer portal and there’s a reason why his Pac-12 program has welcomed the nation’s top-ranked transfer haul in 2022, according to 247Sports. Riley has completely flipped USC’s roster ahead of his first season with several high-profile players, including former five-star Oklahoma quarterback Caleb Williams.

“We’ve now — I hate to say — we’ve kind of become pros at it. We’ve done it enough,” Riley said last month. “So we kind of have our routine, when a guy goes in, of exactly who’s responsible for what, how it gets to each coach, how we evaluate not only the on the field but the off the field, the academics’ situation, all that and then just trying to find guys that check all the boxes.”

Riley isn’t the only first-year head coach using the portal to his advantage. LSU’s Brian Kelly, Oklahoma’s Brent Venables, TCU’s Sonny Dykes and Mario Cristobal at Miami all currently hold top-10 transfer classes.

According to the 247Sports 2022 Transfer Football Team Rankings, here’s a look at the nation’s top 10 classes exiting spring.