After reading the options to make up for absence being considered by the Titans, I'm not sure how the defense might respond.
http://www.tennessean.com/story/tita...able/18985123/
After Walker was knocked out of the game against the Ravens, the Titans produced just two first downs and never crossed midfield again.
The Titans have three tight ends on the roster, Chase Coffman, Richard Gordon and Brett Brackett, none of whom were on the team when the season started. They have a combined two receptions this year.
Overall, Walker being out is a good thing.