Despite the fact that the Houston Texans have lost four in a row and eight of their past nine, owner Bob McNair will not make a change at head coach and Gary Kubiak will return for another season, according to league sources.

McNair believes that if Kubiak can make certain changes to his defensive coaching staff, then he will be able to create a winning atmosphere, and no change at head coach would be needed, the sources said.

Houston ranks 29th in total defense (380.6 yards per game) and last against the pass this season (277.1).

One defensive coordinator candidate who will be considered, according to the sources, is former Dallas Cowboys head coach Wade Phillips, whom Kubiak worked with in Denver, but the Texans have other options they will consider as well.

It also doesn't hurt that Kubiak signed a two-year contract extension after last season and there is potential for a work stoppage in 2011.

Adam Schefter is ESPN's NFL Insider. Information from The Associated Press was used in this report.