I feel the Texans will trade up not down. They have obvious holes that can be addressed via the draft, ILB, OLB, OT, OG, WR, FB, kicker/punter. Those are seven holes & a few could still be addressed via free agency now they have some cap room. In essence they only need to hit on three or four positional studs in the draft.
trade up for Kuechly
select OLB in 2nd Shea McClellin or Ronnell Lewis
WR in third, plenty to choose from.
OG/OT in the 4th
I do like both of your ideas too!