Jeff Hafley on what makes Bears QB Caleb Williams difficult to defend

In his first two seasons, Chicago Bears quarterback Caleb Williams has started all 36 games and has played the Green Bay Packers five times, including one playoff game. His overall record is 2-2 in the regular season and 1-0 in the only postseason meeting thus far, leading the Bears to win three out of the last four meetings. Those five starts all came against former Packers defensive coordinator Jeff Hafley, who took over as head coach of the Miami Dolphins after two seasons with Green Bay.

Hafley had high praise for Williams during the NFL's annual league meetings in Phoenix, and rightfully so. After seeing him during his rookie season and three times this past season -- most notably in the NFC wild-card round, in what was Hafley's last game with the Packers -- one of Williams' traits stood out, which has been standing out since his days at USC. The off-script plays that are never called in the huddle are just manufactured in the moment by Williams himself.

"I just think what Caleb did at the end of the games and his ability to make off-schedule plays are incredible," Halfey said. "I mean, that's just me being honest. At the end of games, when he had to make off-schedule plays and somehow pull it off, he did.

He got better throughout the season. I think he's a really good quarterback that's only going to get better. " Hafley brought a 4-3 base defense that was more aggressive and hindered at a wide-9 vision-based scheme with lots of single high safety looks and speed on the line in the secondary.