Week 4 preview: Key matchups, quarterbacks who aren't meeting their preseason hype and more

"Miami bet on Carson Beck reviving his NFL prospects after a down year at Georgia. So far, he has delivered, averaging nearly 10 yards per pass with eight total touchdowns, and the Canes are ranked in the top five. Oklahoma wagered Brent Venables' future on John Mateer, and the Washington State transfer has been electric, leading the Sooners past Michigan in a Week 2 showdown and earning Heisman front-runner status."

"Auburn felt sure former five-star recruit Jackson Arnold still had plenty of untapped potential, and through three weeks, he has looked like the superstar he once was, getting the Tigers to 3-0. Ohio State, Georgia and Oregon all bet on in-house QBs rather than dipping into the transfer portal, and all have been rewarded. Florida State, Indiana and Tulane hit pay dirt in the portal."

"On the flip side, so many quarterbacks who were expected to provide massive dividends -- Arch Manning, Cade Klubnik, DJ Lagway, Nico Iamaleava, LaNorris Sellers -- have wavered between average or awful. Week 4 offers some chances for redemption, with Lagway getting another big test against Miami, Klubnik hoping to right the ship against Syracuse and UNC's Gio Lopez going on the road against UCF in the Tar Heels' first real test since a blowout loss to TCU."

Quarterback decisions have defined the season's early story, producing clear winners and losers through three weeks. Miami's Carson Beck has revived his stock, averaging nearly 10 yards per pass with eight total touchdowns and propelling the Canes into the top five. Oklahoma's John Mateer and Auburn's Jackson Arnold have emerged as dynamic transfers or returns, while Ohio State, Georgia and Oregon found success sticking with in-house quarterbacks. Florida State, Indiana and Tulane benefited from portal additions. Conversely, high-profile quarterbacks such as Arch Manning, Cade Klubnik, DJ Lagway, Nico Iamaleava and LaNorris Sellers have struggled. Week 4 offers multiple redemption opportunities and tests for several young talents.

Read at ESPN.com