Texans defensive coordinator Wade Phillips will be Houston's interim head coach with Gary Kubiak out indefinitely after suffering a mini-stroke this weekend.
Phillips, a former head coach for Dallas, took over after Kubiak was taken to the hospital and he ran Houston's practice on Monday. Offensive coordinator Rick Dennison likely will take over the play-calling duties.
The team says Monday that the 52-year-old Kubiak suffered a transient ischemic attack at halftime of Sunday's loss to Indianapolis. He was released from the hospital on Tuesday and is expected to make a full recovery, but there is no timetable for his return to the team.
Houston, which has lost six straight games, plays at Arizona on Sunday.