With a full weekend of real football in the books, it’s time to overreact to what we saw from the nation’s quarterbacks and correct — or overcorrect — some of our projections.After spending months talking to dozens of coaches, general managers and staffers to rank every starting quarterback in the country in The Athletic’s College QB Tiers, we got a chance to see where we were right and where we were wrong — at least through one week.Most of the Tier 1 quarterbacks — except for one — played at or above the level expected of the nation’s elite. But there are some lower-tier quarterbacks who impressed and some upper-tier QBs who had rough debuts.Let’s look at whose stock is up and whose is down after the first weekend of action.Note: With each quarterback, we included their preseason tier, overall ranking and ranking in their conference.Stock upJayden Maiava, USC (Tier 2, 9th overall, 3rd in the Big Ten)There was a ton of optimism about Maiava at USC throughout the offseason, and he’s justified the hype through two games.Maiava has completed 48 of 54 passes for 635 yards and five touchdowns. The Trojans’ run game has not been explosive (4.0 yards per carry, long run of 16 yards), but Maiava made San Jose State and Fresno State pay through the air.And even though he lost two talented targets (Biletnikoff Award winner Makai Lemon and Ja’Kobi Lane), Maiava has quickly developed chemistry with young USC wideouts Trent Mosley and Kayden Dixon-Wyatt, who both topped 100 yards against Fresno State.Maiava should continue to light it up against Louisiana and Rutgers the next few weeks before he gets a chance to make a massive statement for himself and the program against Oregon on Sept. 26.Kamario Taylor, Mississippi State (Tier 4, 32nd overall, 10th in SEC)Taylor’s youth and inexperience — he started just two games as a freshman in 2025 — was the main question coming into this season, but coaches and staffers were bullish on him because of his size, arm strength and athleticism. After his 2026 debut, it’s easy to see why. Although it came against an overmatched ULM squad, Taylor looked sharp, throwing for 354 yards and four touchdowns while rushing for 59 and another score. Mississippi State scored on all eight possessions in which Taylor played.We need to see it against stiffer competition, but it’s easy to get excited about Taylor’s enticing talent.