With us switching to the 4-3, Walker should benefit greatly. I know he's up there in age, but when he was healthy, he was a force on defense.
Walker has had his greatest success in the NFL when he played in a 4-3 defense. Imo, part of his injury problems have got to be due to the fact that he's been getting double teamed almost constantly in the 3-4. After all, that's what the role of a DT is in the 3-4. They're supposed to tie up the OL, so that the LB's can make the plays. Thus, his body takes a lot of punishment.
Prior to him coming to Houston, & including his 1st year here, he had only missed 3 games in 8 years. In the last 3 years (all with Houston), he's missed 18 games. Is that just age, or the 3-4?
With the switch to the 4-3, that should free him up some. As a result, we should see a much greater performance from Walker this upcoming year.
The Texans have 4 very good DT's in Walker, Payne, Smith, & the youngster (TJ). There are a lot of teams that would love to have that kind of DT talent.
If Babin picks up from where he left off, at the end of last year, & continues to improve on the talent that we were lead to believe he has, that will only help to take some more pressure off of Walker.
At times I'm impressed with Peek & at other times I'm disgusted with him. Now, while I'm a solid trade down & pick D'Brick fan, there's been something that's been bouncing around in my head (no, it's not a loose lugnut) for a while.
What if we traded down & picked Mario Williams? Imagine a DL of Babin, Walker, Payne, & Williams, with Robaire, TJ, & Peek coming off the bench. I do realize that one of Walker, Robaire, or Payne will need to be traded away for cap reasons, but even with that, we'd have one heck of a DL.
The bottom line is, I look for a major improvement from Walker (& even Babin) with the switch to the 4-3.