Texans have several 2B or 3.Cooks isn't a #1 receiver. Allen isn't a burner, and probably not a bona fide #1 receiver either. More like a 2A guy like Larry Fitzgerald or Anquan Boldin. Chargers also have Mike Williams, so basically two #2A WRs. Cooks is a #2a guy; not sure if Collins qualifies as a #3 on a playoff team. Texans have a below average receiving core overall - probably one of the worst in the NFL.
Personally, I was hoping Caserio would grab a WR with one of the 1st round picks this draft to give Mills a better chance. He didn't and Metchie got hurt so Mills was handicapped out of the gate.
They have a lot of experience combined as opposed to the rest of the AFC South, and many other teams.