The Celtics 2019 offseason ended in October 2018.

Then, it began a short time later.

After a backward year in Boston, the dust has settled. Kyrie Irving and Al Horford are gone. Kemba Walker and Enes Kanter are there.

The Celtics will be fine. Jayson Tatum and Jaylen Brown return and should keep growing. The major holes are filled.

But the busy summer leaves Boston with a much lower ceiling.

It was never supposed to be like this.

Before last season, Kyrie Irving vowed to re-sign. This wasn’t just an impulsive moment at a pep rally. Irving made a whole commercial about the Celtics retiring his number.

Boston looked like an emerging power – the Warriors’ most-likely successor, maybe as soon as last season. The Celtics were talented, young and deep. Irving’s commitment seemed to answer one of the few questions facing the team.

Instead, Boston unraveled. Irving and other Celtics repeatedly found problems with each other. Everyone seemed miserable. A disappointing second-round loss was almost a relief. At least it was over.

In what was once supposed to be a simple offseason for Boston, Irving bolted for the Nets. Horford followed through the exit, to the 76ers. The Celtics replaced those two with Walker and Kanter via free agency.