There’s no realistic way Wilks is going to get fired at all in midseason, since who is out there that will be able to replace him as DC?

You can’t poach an assistant from someone else’s staff in the middle of the season. If there was a natural successor from within the staff, the team wouldn’t have gone outside the organization to begin with.

The only realistic option would be an experienced DC who is either taking a break/retired, works in college, or is a consultant or something on another team.

Who are your actual realistic options for DC at this point of the season?