New York Knicks coach Tom Thibodeau told reporters Monday afternoon that he is removing guard Kemba Walker from not only the team's starting lineup but also the rotation as a whole, beginning with Tuesday's showdown with the crosstown-rival Nets in Brooklyn.

"It's a tough decision to make, but you always have to do what you think is best for the team," Thibodeau said after practice Monday in explaining his decision. "I view Kemba as a starter, and so it'd be tough to play three small guards together. I gave it consideration, and I've got great respect for who Kemba is as a person and all he's accomplished in this league.

"But I have to do what I think is best for the team."

In this case, Thibodeau decided that meant benching Walker in favor of Alec Burks. Walker, a four-time All-Star and New York City basketball legend, returned home this past summer on a two-year, $20 million deal after being bought out by the Oklahoma City Thunder following a trade from the Boston Celtics.

After seeing Burks go for 23 points in 39 minutes in Saturday's win in Atlanta over the Hawks -- a game Walker didn't play in after scoring 17 points in New York's loss to the Phoenix Suns at Madison Square Garden the night before -- Thibodeau has opted to put him in the starting five moving forward.

"I want to tighten the rotation. I liked the way the team functioned, so it will be similar to what we did in the Atlanta game."

Walker, 31, is averaging career lows across the board, including points (11.1), rebounds (2.6), assists (3.1), field goal attempts per game (9.8) and minutes (24.5). After a hot start to the season, his numbers have tailed off dramatically, as he averaged 10 points on 39% shooting overall -- and 29% from 3-point range -- through 12 games in November.

Meanwhile, New York's starting lineup has simply not worked. Entering Monday night's action, the team's typical starting lineup -- Walker, Evan Fournier, RJ Barrett, Julius Randle and Mitchell Robinson -- is the NBA's most-used five-man lineup, logging 287 minutes. It has also been outscored by 15.6 points per 100 possessions in those minutes, and has what would be the NBA's worst defensive rating (118.9). Individually, the Knicks are being outscored when Walker is on the court by 13 points per 100 possessions, and are outscoring teams by 11 points per 100 possessions when he isn't.

Walker spent the past two seasons in Boston after the Celtics signed him to a four-year max contract in 2019 to replace Kyrie Irving once the latter left to sign his own max deal with the Nets. After making the All-Star team his first season and helping Boston reach the Eastern Conference finals with strong play in series victories over the Philadelphia 76ers and Toronto Raptors along the way, Walker struggled with knee issues last season, missing 29 games in the regular season and the final two games of Boston's five-game loss to Brooklyn in the first round.

In his first significant move as president of the franchise, former coach Brad Stevens chose to trade Walker to the Thunder, along with the No. 16 pick in July's NBA draft, to bring center Al Horford back to Boston. Horford has seamlessly fit right into Boston's lineup, particularly with starting center Robert Williams missing chunks of multiple games with various injuries early on this season.

Walker, on the other hand, eventually agreed to a buyout with the Thunder, allowing him to return home to New York to play a smaller role with his hometown team. But after being benched down the stretch repeatedly over the past several weeks, along with other members of the starting lineup, as New York's bench has consistently outperformed it, Thibodeau decided Monday to take things a step further.

The Knicks are currently 11-9, putting them in the middle of the tightly bunched Eastern Conference standings. New York is three games behind the East-leading Nets and one ahead of the 76ers in 11th.