If Boston Celtics associate head coach Tom Thibodeau does not accept the New Orleans Hornets head coaching position by Thursday, the Hornets are prepared to move on, multiple sources told SI.com.

Sources say the Hornets, who have made a formal contract offer to Thibodeau, would shift their attention to Portland Trail Blazers assistant coach Monty Williams.

Thibodeau's representatives, Leon Rose's Creative Arts Agency, have been feverishly attempting to get the Chicago Bulls and New Jersey Nets interested in the Celtics assistant, according to sources.

Thibodeau, who has never been an NBA head coach, is said to be enthralled with the Nets opening and to prefer New Jersey and Chicago over New Orleans.

But multiple sources also believe Thibodeau is very interested in taking over the Celtics should Doc Rivers elect to leave the team after this season.

While it is unclear how significant the Bulls' interest is in the longtime assistant, two sources have told SI.com that the Nets are serious about Thibodeau for their vacant head coaching position.

The Hornets, however, are not willing to wait. An accomplished defensive coach, Thibodeau would appear to be a solid fit for a team that finished 21st in the NBA in points allowed (102.7 per game) and 13th in defensive field goal percentage (46.4 percent).

Regardless of who coaches, the Hornets are likely going to continue to be a heavy pick-and-roll team offensively, with annual MVP candidate Chris Paul highly effective running that style of offense.

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