Iowa offensive coordinator Tim Lester is entering his third season with the Hawkeyes, focusing on refining the Shanahan-style offensive system to suit the team’s evolving personnel. According to Lester, the program has reached a point of increased flexibility, allowing the offense to move beyond basic survival tactics and toward a more aggressive, quarterback-driven approach in the 2026 season.
Evolution of the Shanahan System at Iowa
When Tim Lester arrived in Iowa City in February 2024, he brought a playbook modeled after the Green Bay Packers’ offensive philosophy. This “Shanahan system”—a combination of West Coast passing concepts and wide-zone running schemes—was a departure from Iowa’s previous offensive identity. According to Lester, the system requires years to master, but its primary strength lies in providing “answers to everything” for the quarterback.
The transition was initially difficult. In 2024, the offense averaged 27.7 points per game, a notable increase from the 15.4 points per game recorded in 2023. However, Lester noted that the first two seasons were spent teaching the system while simultaneously searching for players who could execute its complexities. By the end of the 2025 season, the offense showed marked improvement; in the final nine quarters, the passing game averaged 10.3 yards per attempt with a 174.54 passer rating, a significant jump from the 5.8 yards per attempt recorded over the first 43 quarters.
Pro Tip: Coaches implementing complex NFL-style systems in college football often rely on roster stability. Lester credits Iowa’s long-term developmental culture for providing the necessary time to install a system that is typically avoided by programs with high annual turnover.
Quarterback Competition and Development
The 2026 season presents a new challenge for Lester as he navigates a quarterback battle between Hank Brown and Jeremy Hecklinski. Following the departure of Mark Gronowski to the Miami Dolphins, Lester is tasked with identifying a starter who can handle the mental demands of the Shanahan system.
Lester expressed optimism regarding the current depth, noting that for the first time in his tenure, he has a quarterback that knows the system already. The goal is to avoid the “yips” and early-season struggles that plagued the position in previous years. During the 2025 season, the team was forced to adapt by utilizing unconventional tactics, such as the “Tush Push,” to maximize Gronowski’s rushing ability. For 2026, the focus shifts toward a more traditional execution of the system’s passing mechanics.
Personnel Strengths and 2026 Outlook
Lester’s confidence in the upcoming season stems from the emergence of specific playmakers. Tight end DJ Vonnahme, who recorded 262 yards on 12 catches during the final stretch of 2025, is expected to be a primary weapon. Wide receiver Reece Vander Zee, finally healthy after a 2025 foot injury, and transfer receiver Tony Diaz are also slated to contribute to the passing attack.
According to Lester, the offensive line and the running back room remain the foundational strengths of the team. While the Shanahan system is designed to create confusion for opposing defenses, its success at the college level depends on the ability to run the ball effectively. Lester noted that the “healthy room” of running backs and the veteran presence on the offensive line provide a stable platform for whichever quarterback earns the starting role.
Did you know? Tim Lester, a former gunslinger at Western Michigan in the late 1990s, passed for 11,299 yards and 87 touchdowns during his college career. He attributes his desire for aggressive play-calling to his own history as a quarterback who was willing to take calculated risks.
Frequently Asked Questions
What is the “Shanahan system” used by the Iowa Hawkeyes?
It is an offensive scheme that blends West Coast passing concepts with wide-zone running plays. It is widely used in the NFL and is designed to provide multiple tactical answers to different defensive looks.
Who are the contenders for Iowa’s starting quarterback job?
The competition for the 2026 season is between Hank Brown and Jeremy Hecklinski.
How did Iowa’s passing efficiency change in 2025?
Iowa’s passing game saw a sharp increase in production during the final nine quarters of the season, moving from an average of 5.8 yards per attempt to 10.3 yards per attempt.
What is Tim Lester’s background?
Lester served as an offensive coordinator and head coach at Western Michigan before spending time as an analyst for the Green Bay Packers under head coach Matt LaFleur.
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