IRVING, TEXAS ? Bill Parcells is back for sure, taking over the Dallas Cowboys on Thursday to end any doubt about his return to the NFL. Parcells was introduced by the team after more than a week of speculation and conflicting reports about a coach with a history of walking away from deals.

The two-time Super Bowl winner was hired three days after Cowboys owner Jerry Jones fired Dave Campo, saying he wanted a proven coach and a “change in philosophy.”

“I’m energized, determined and I look forward to being part of the community here in Dallas,” said Parcells, already wearing Cowboys colors — a silver-and-blue striped tie. “I know what station football occupies on all levels in the state of Texas.”

Parcells, who received a four-year contract reportedly worth $17.1 million, will try to turn around a team that went 15-33 in the last three seasons. He is the first Cowboys coach with prior experience as an NFL head coach.

Dallas won the last of its five Super Bowls — three under Jones — in 1996, and the Cowboys haven’t had a winning record since 1998.

“I look forward to getting the team back to a place of prominence, a place of high-competitiveness,” he said. “I became convinced that this was the opportunity at this time that was right for Bill Parcells.”

Jones described Parcells as the “most qualified coach in our sport that you could draw up if you were drawing your own Rembrandt.”

The 61-year-old Parcells coached 15 seasons for three teams, taking the New York Giants, New England Patriots and New York Jets from losing records to the playoffs in two seasons.