Rex Ryan and John Idzik are out with the Jets. The Bears canned Marc Trestman and Phil Emery. Mike Smith was fired in Atlanta.
He went on injured reserve a year ago while with the Bears, then became a free agent in the offseason.
For his career, Ponder has played in 38 games with 36 starts, throwing for 6,658 yards with 38 touchdowns and 36 interceptions.
The rookie set the single-season rushing record at Minnesota with 1,626 yards last season. Cobb has been busy working himself back into shape, and he has been more noticeable over the past week.
Instead, San Diego (2-5) and Baltimore (1-6) will be vying to end three-game losing streaks Sunday and distance themselves from discussion about qualifying for the No. 1 pick in the 2016 draft.