What is encouraging about the Celtics simply doing their job of late is that they are taking baby steps toward consistency. They are approaching the point where you expect performances such as Wednesday night’s, where they led an inferior team for the final 28 minutes en route to an important win.

Every game is important in late March, and the Celtics are continuing to cement themselves as at least the No. 2 seed in the Eastern Conference, with hopes of overtaking the Cleveland Cavaliers for the top spot.

Wednesday’s 109-100 win over the Indiana Pacers showed the maturity of the Celtics. They hadn’t faced the Pacers in exactly three months and fully realized Indiana is fighting for a playoff spot.

Theoretically, Indiana should have been the more desperate team because it is not guaranteed to make the postseason, but after a slew of turnovers in the first 20 minutes, the Celtics looked like the more focused and confident team.

And we’re not just talking about two-time All-Star Isaiah Thomas. The Celtics had five players score in double figures, including Avery Bradley with 18, as Boston led by as many as 17 and staved off a late rally.

It was a workmanlike performance, one that should not be ignored because the Celtics are peaking at the proper time. They dropped a winnable game Sunday against the Philadelphia 76ers without Thomas, and then they came back and whipped the Washington Wizards the next night.

Indiana was generally the same team it was three months ago: Paul George and a bunch of other dudes. George, whose future in Indiana is in question after next season, dropped 37 points in 42 minutes, while Jeff Teague added 25.

The rest of the Pacers were 17-for-46 shooting, as the Celtics battered Indiana with their depth.

The ball movement was crisp. Thomas avoided his occasional bad shots and handed out five assists as the team made the extra pass and punished the Pacers toward the end of shot clocks.

Celtics coach Brad Stevens acknowledged there will be nights like Wednesday when he tightens the playing rotation depending on the opponent. He is focusing on the playoffs and teams such as Indiana, Miami, and Milwaukee (the Celtics host the Heat Sunday and Bucks next Wednesday) — could be their first-round matchup.

And instead of worrying about seed or opponent, Stevens’s message to his team is to worry about itself. The Celtics are capable of beating any team in the Eastern Conference. What’s more, they have winning records against 10 of the 14 teams in the conference, and are 11-2 against the Pacers, Bucks, Heat, Bulls, and Pistons, all possible first-round opponents.

The Celtics have been able to incorporate Al Horford more into the offensive equation and Thomas has sacrificed shots, especially early in games, to include his teammates, Bradley especially.

Bradley, who scored 20 points in Monday’s win over Washington, added 18 points on 7-for-13 shooting against the Pacers with eight rebounds and two assists.

The Celtics’ chemistry is becoming so thick, it’s noticeable even in the visiting locker room.

“If you look at their roster, everybody knows what to expect out of everybody,’’ George said. “There’s never a moment where a guy is like, ‘What kind of shot are you taking?’ or ‘What are you doing?’ They are beyond that. And that’s the chemistry we’re trying to make. To where when guys are playing we’re comfortable with their play style and we know what they’re going to do within our offense. We’ve got a little way to go.’’

After dealing with myriad injuries and lineup changes, the Celtics are beginning to settle in at Game 72. Horford has never looked more comfortable within the offense and Celtics fans will have to get accustomed to his contributions being more defensive or ball movement than points and rebounds on certain nights.

Following a captivating stretch of fourth-quarter heroics the past few months, Thomas has cooled off, averaging just 6.3 points per final period in March, including 4 on Wednesday. In those nine games, the Celtics are 6-3, and Thomas is relieved that the wealth is being spread.

“When I was going off in the fourth quarter, I was starting the fourth, and I was playing the whole fourth,’’ he said. “Now it’s like, guys are really playing well in the fourth and it’s not just me. Teams are really trying to stack up against me in the fourth quarter to stop me, but other guys are stepping up, and that’s what it’s about. Other guys making plays and not just looking for me to go out there and make plays. I’m just trying to take what the defense gives me. I’m still trying to be aggressive, but things are a little different from where they were in January and February.’’

And that’s a good thing. The Celtics haven’t been this balanced all season. Following that tough road-trip-ending loss to Denver, which battered the Cavaliers on Wednesday night at the Pepsi Center, the Celtics have gathered themselves and realized the seriousness of this final month of the regular season.

It’s important to rack up as many wins as possible, stop worrying about the standings, and become more cohesive and trusting. That process is coming to fruition at the perfect time because the Celtics finally figured out they need to concern themselves only with themselves.

Gary Washburn can be reached at gwashburn@globe.com. Follow him on Twitter @GwashburnGlobe.