Asked Thursday if Williams will play in any of the preseason games, Fox said, "I haven't decided that yet. We're bringing him along, getting him ready for the season. And we're about ready to go into a suspension time at the end of this month and we'll go from there."
The linebacker was recently convicted of driving while ability-impaired and driving without his headlights Wednesday.
Despite Williams' off-the-field issues, he's highly valued by the Broncos' coaching staff for his technically sound play, and he's still listed as the starter at weakside linebacker on their depth chart.
Williams is subject to further punishment from the NFL because of his conviction on the impaired driving charge. The NFL said it will review the matter.
"Sometimes, setbacks for one player are setups for another player," Fox said. "In my experience, we've discovered a lot of players in those situations, so I don't think we have any more injuries than anybody else in camp, it's just part of camp."
Copyright 2012 by The Associated Press