The Boston Celtics can still make a big splash in 2022 NBA free agency.

Bigger than just Danilo Gallinari at least.

Remember that in the city of Boston, the threshold for success is rather high.

That is why, following the Celtics' finest season in more than a decade, the topic of discussion has now shifted to how GM Brad Stevens. Can he strengthen the squad after losing to the Golden State Warriors in the 2022 NBA Finals?

Every member of the regular rotation for Boston is under contract until at least the 2022–2023 season, and recent comments from Stevens indicate that he would rather acquire supplementary players than split up the core. As a result, Boston's to-do list is short.

Having said that, the Celtics do have very specific demands. While head coach Ime Udoka looks to have an experienced scorer on his wish list, Stevens wants to emphasize bench scoring and playmaking as areas of interest in the free-agent and trade markets. Of course, there's also the need to bolster their frontline, which is anchored on a relatively fragile Robert Williams III and a 36-year-old Al Horford.

Don't anticipate the Celtics to sign a high-profile free agent making more than $20 million, though. They are currently above the luxury tax threshold, but they also have access to the $6.39 million taxpayer midlevel exemption. A few fascinating names may then be open to going to Boston as part of such a deal.

That's just as good since this current roster might still be a championship tier.

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Celtics: Three Moves Boston Must Make

3. Sign Harry Giles

The Boston Celtics have already made significant progress in terms of enhancing their supporting cast by signing Gallinari this offseason. While this is crucial, that did not stop star forward Jayson Tatum from recently using Twitter to ask NBA teams to take into consideration signing his close buddy and former Duke Blue Devil teammate Harry Giles.

Brad Stevens and company may do well to seriously consider bringing the former first-round pick aboard this summer, even if it is unclear whether Tatum was pushing for Boston to sign Giles or if he was merely lobbying for the 6'10 big man to have a roster spot on any NBA team.

Now, the last time we saw the big man on the court, he was playing for the Agua Caliente Clippers in the G League, where he averaged a respectable 11.7 points and 7.3 rebounds per game.

Those numbers are not worth writing home about, the addition of Giles would be a simple way to keep the franchise cornerstone satisfied. This would also give the team a 24-year-old with solid potential at a position that still needs to be addressed. Even getting Giles on a modest, non-guaranteed contract, would not be a risky proposition for Boston. There's really nothing to lose here, and there's much emotional equity to gain.

2. Sign T.J. Warren

We already mentioned that Boston's budget offseason is tight, but it may be stretched by taking on a certain amount of risk.

Enter T.J. Warren. Yes, the stress fractures on his left foot have prevented him from wearing a uniform during the last two seasons combined. Truthfully, despite the fact that his foot apparently healed late last season -— long after the Indiana Pacers were buried in the Eastern Conference standings -— any team that takes him in will still take on some risk.

He did have a very good three-season stretch from 2017-2020. In those years, he averaged at least 18.0 points per game on a minimum of 48.0% field goal shooting every season. He also successfully completed more than 40% of his triples from 2018-2020. He was even one of the best players in the 2020 NBA Bubble. Because the Celtics need more wings who can defend and make long shots, Warren could be a terrific pick-up. He fits both criteria when he's healthy.

In addition, Warren may be a steal for the mini-mid-level exemption. Worth the risk? It sure looks like it.

1. Sign Thomas Bryant

Although the Danilo Gallinari issue may have given the Boston Celtics a possible high-impact acquisition, there are rumors that the team may be in for one more major addition. To wit, a bright young big man is said to be very interested in joining Boston.

The Celtics are reportedly interested in 24-year-old center Thomas Bryant, and it appears that interest is reciprocal. If Stevens can find someone with the youngster's level of potential, such an acquisition may end up being a remarkable bargain.

Bryant still offers a terrific skill-set that teams seek in their frontcourt. One caveat is he spent a significant portion of this past season becoming reaccustomed to in-game action after recovering from a ruptured ACL.

Before the injury, however, Bryant averaged 13.4 points, seven rebounds, and one block a game while shooting an impressive 59 percent from the field and 41 percent from beyond the arc from 2019-2021.

If the Boston Celtics could find a way to acquire someone like Thomas Bryant, it would be nothing short of great. He'd be a great back-up to both Horford and Williams III.