Monty Williams will be named the next coach of the Detroit Pistons and is expected to sign a six-year, $78.5 million contract, sources told ESPN’s Adrian Wojnarowski.

The Pistons will give Williams the largest coaching deal in NBA history to replace Dwane Casey, who stepped down as Detroit’s coach in April to move into a front-office role.

The Athletic reported that there are team options for the seventh and eighth year, and incentives that could increase the deal to $100 million.

Williams was fired by the Phoenix Suns on May 13 after four seasons with the team, including a trip to the 2021 NBA Finals. He won 63 percent of his games with the Suns and was named the NBA Coach of the Year in May 2022 after leading Phoenix to a franchise-record 64 wins.

The Suns, however, had huge losses in elimination games in the playoffs in consecutive seasons and that ultimately led to Williams’ firing.

Casey went 121-263 in five seasons with Detroit and the team made the playoffs only once under his guidance.

The Pistons finished an NBA-worst 17-65 in 2022-23 for their seventh straight losing season. They haven’t won a playoff round since 2007-08.