That simply isn't worth it, according to Mannix, because the Celtics already look like legitimate NBA Finals contenders after taking James and the Cavs to seven games in the Eastern Conference finals this past season - something he reiterated Monday.
Just as the Celtics rejuvenated themselves under head coach Brad Stevens, James was there to meet the franchise at the rim again, this time having returned to the wine-and-gold.
Irving is eligible for an extension this summer but, even coming off another knee surgery that sidelined him for Boston's improbable run to the cusp of the Finals, was adamant that he'll wait for the summer of 2019 to examine his future.
In that Game 7, the Celtics came up short despite an impressive defensive performance, putting together one of the worst offensive showings of the postseason.
And Broussard believes the 33-year-old would be a great fit in Boston before stating Danny Ainge could trade either Hayward or Irving away in another huge roster shake-up.
In order for the money to match up, Ainge would need to send Irving, Hayward or Al Horford to Cleveland in addition to a batch of expiring contracts, such as Marcus Morris or Terry Rozier, and a pick from their still-burgeoning stash of first-rounders over the next few years.
Jaylen Brown's rookie season didn't go as many had hoped for with the Boston Celtics. This season he averaged 14.5 points, 4.9 rebounds, 1.6 assists and 1.0 steals per game. He is the priciest of the three, commanding 29 percent of the Celtics salary cap this year with a figure of $31.2 million.
When the team returns from its summer recess, with Irving and Gordon Hayward healthy and ready for training camp, they will likely have skilled, battle-tested stars at every position in the starting lineup.
As for the draft, the Celtics have 27th pick and should be able to find a solid bench player at that point. No doubt. There is no other player in the National Basketball Association capable of playing at the level James does.
So, naturally, talks of a reunion between two of the league's best players have picked up as James approaches free agency. It's felt like a number of seasons in one.
LeBron James could become a free agent in the summer.