Becht leaves Iowa State with 9,274 passing yards.
Burkle has one year of eligibility remaining.
Shanahan Jr. will follow former offensive line coach Phil Trautwein to Gainesville.
Campbell was a key player the Nittany Lions would have loved to have back in 2026.
Nwosu averaged 46 yards per punt in 2025.
The former Iowa State player has four years of eligibility remaining.