Kailee Wong played MLB in a 4-3 in Minn before coming to the Texans .... He put up decent numbers from that position in 2000 and 2001 . I think he would be the likely starter at that position at this point .... this being prior to the draft and free agent signings.
http://www.houstontexans.com/team/roster_detail.php?PRKey=79
2000: Earned MLB slot in training camp and started all 16 games
paced team with career-best 134 tackles
added two sacks, two INTs and three passes defensed
posted 10 or more tackles in eight games
2001: Started all 16 games, leading Minnesota with 116 tackles
added three sacks, one INT and six passes defensed
There are a multitude of talented ILB prospects available in the coming draft and depending on what they do in the first round where I think they will take one of for players .... Those being Bush , Young , Mario Williams or D'Brickashaw Ferguson im sure that the position will be looked into at some point in this draft ... Here's a few prospects that the Texans could look after the first round .
D'Qwell Jackson, Maryland 6-1 231 4.65 (Round 2)
Anthony Schlegel, Ohio State 6-2 245 (round 3)
Aaron Harris, Texas 6-0 235 (Round 3)
Gerris Wilkinson, Georgia Tech 6-4 230 4.71 (Round 4)
Leon Williams, Miami (FL) 6-4 237 (round 4)
Kevin Simon, Tennessee 5-11 234 4.55 Could be a sleeper pick , This guy has tons of potential and could play multiple positions but has missed a ton of time because of injuries . Maybe take a flier on him in round 5 or 6 .
Seriously doubt that the Texans look at this position prior to round three and most likely later than that with all the holes thay have and with the rumored switch to the 4-3 .... They dont have a true 4-3 DE on the roster outside of G.Walker and he has durability issues not to mention his age and large contract . If the Texans switch to the 4-3 the DE position will take priority .