Miller was banned for the first four games of the season by the NFL for substance abuse, but the Broncos have still managed to start their season 3-0, even without their All-Pro linebacker.
"That next-man mentality is so important in this league, and especially on our team," Woodyard told the Denver Post.
"That helps everybody jell and bond together, when we get a guy stepping in that doesn't get a chance to play that much, and he comes in, and now he's playing like a starter. It's good to see that happen throughout our defense."
Denver face the Philadelphia Eagles on Sunday at Mile High Stadium.