Practice squad is the place for guys like Lekkerker, undrafted free agents. Exposing him will be just a risk the team has to take, unless he proves good enough to stick as the 9th OL instead of 8 here. Probably 9 OL man instead of 7 DLmen.
Armstrong with the 4th WR who may be closer to pushing for 3rd than hanging onto the 5th. The player in the 5th spot will make the team because of ST play.
If the Texans offense runs correctly the FB will need to be a blocker first I give the edge to Norris. Last I remember there was still concern over Baxter recovery also.
Shawnte Orr will be in a battle with Raheem Orr, Anderson and Dunn for that spot. At least one of those guys will be on the practice squad.
Faggins is the 4th CB, closer to 3rd than gone. Simmons is on the list with Duff/Bell and company fighting for a spot based on ST play more than coverage ability.
Also, of course, a couple of injuries will occur (hopefully just a handful and not 17), and a couple of players were not thinking about or not even on the team now will be in the mix.