Brett Brown, who became the head coach of the Sixers in 2013, was considered a big part of their rebuilding era. Pool Photo-USA TODAY Sports

The Philadelphia 76ers saw their season end in disappointing fashion on Sunday, and they have wasted no time moving on from head coach Brett Brown.

Brown was fired by the Sixers on Monday, ESPN’s Adrian Wojnarowski reports. There are expected to be more moves coming within the Sixers' front office.

General manager Elton Brand is expected to continue to oversee basketball operations, according to Wojnarowski.

The Sixers were swept by the Boston Celtics in four games. They barely put up a fight, although not having Ben Simmons for the series didn’t help. Even with Simmons, Philadelphia was inconsistent on offense all season and never really found an identity after sending Jimmy Butler to Miami in a sign-and-trade deal.

Reports have indicated that players openly challenged Brown over his offensive game plans throughout the season. There were also said to be trust issues between the 59-year-old coach and his players, who felt Brown did not hold players accountable.

Brown, who became the head coach of the Sixers in 2013, was considered a big part of their rebuilding era. He finishes with a regular-season record of 221-334 and a playoff record of 12-14.

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