Bears rookie safety Thieneman focuses on technical refinement in new-look secondary

Chicago Bears rookie safety Dillon Thieneman is concentrating on technical refinement during training camp to align with the defensive requirements of head coach Ben Johnson’s high-scoring offense. Selected with the No. 25 overall pick in the 2026 NFL Draft, Thieneman is working to improve his vision and depth in coverage schemes, specifically Cover 2, to better track quarterback Caleb Williams and match the pace of the team’s potent attack.

Thieneman’s approach to learning is characterised by a rigorous routine that has followed him from his collegiate career to the professional level. His former defensive coordinator at Oregon, Chris Hampton, described the safety as "routine-oriented," while Kyle Bolton, the Ducks’ director of speed and performance, noted that Thieneman was known as "The Terminator" for his consistent early arrivals and late departures. This self-driven work ethic was further highlighted by Kevin Kane, Thieneman’s defensive coordinator at Purdue, who stated that Thieneman has worked harder than anyone else in his experience to reach his current level.

The Bears’ defensive strategy is being shaped by an ambition to score the most points per game in league history, a target set by Johnson. Consequently, the secondary must keep pace with an offense that features condensed formations expanding rapidly. Thieneman has voluntarily spent additional time after practice analysing these plays, aiming to read Williams’ eyes and adjust his depth to take better angles toward the ball.

This technical focus is particularly urgent given the current state of the Bears’ secondary. The unit has suffered the loss of safety Coby Bryant, a reigning Super Bowl champion and former Seattle Seahawks standout, to a left knee injury. Bryant is expected to be sidelined for four to six months, placing increased responsibility on Thieneman and other new components of the defense.

Thieneman is considered among the fastest players on the Bears roster, a physical attribute that complements his need to be one of the fastest learners in the group. His ability to execute pre-planned drills and address specific pain points from daily practice is central to his integration into the starting lineup.

As training camp progresses, Thieneman’s rapid learning curve will be a key indicator of the Bears’ defensive readiness. The team’s success in balancing its high-octane offensive ambitions with defensive stability will rely heavily on the development of players like Thieneman in this new-look secondary.