It didn't take long for New York Jets interim general manager Adam Gase to make his first trade.

The team on Wednesday night agreed to send linebacker Darron Lee to the Kansas City Chiefs for a 2020 sixth-round pick, a league source told ESPN's Adam Schefter.

Gase inherited personnel power earlier Wednesday, when general manager Mike Maccagnan was fired after four seasons. Gase, hired in January as the coach, will serve as the interim GM until a new one is hired.

Maccagnan picked Lee in the first round of the 2016 draft. His days were numbered as soon as the Jets signed middle linebacker C.J. Mosley to a record-setting contract in free agency. They tried to trade Lee during the NFL draft last month, then declined to exercise his fifth-year option.

Lee was the 20th overall pick in the 2016 draft. It was a curious choice, because at 6-foot-1 and 232 pounds, he seemed small to play inside linebacker in the 3-4 defense. The coaching staff downplayed the size factor, saying he fit the growing trend of fast linebackers who could play in space against spread offenses.

The former Ohio State standout struggled in his first two seasons, especially against the run, but he showed signs of improvement in 2018. He made three interceptions -- the first three of his career -- including one returned for a touchdown.

Lee felt he had played well enough to earn Pro Bowl consideration, but his season came to an abrupt end after the 12th game when he received a four-game suspension for violating the league's substance-abuse policy. He has yet to comment publicly on the matter.

Due to the suspension, Lee's 2019 base salary of $1.84 million is no longer fully guaranteed, because by rule the guarantee was voided. The Jets had no intention of exercising his fifth-year option for 2020, which would have been an estimated $10 million.

In the Jets' way of thinking, Lee became expendable when they signed Mosley to a five-year, $85 million contract in free agency. Mosley will replace Avery Williamson, who will slide over to Lee's former spot -- the weak-inside linebacker position.

Williamson's $8 million salary is guaranteed, and there was no chance that the Jets would eat that much money.

In three seasons, Lee started 36 of 40 games, compiling four sacks, two forced fumbles and no fumble recoveries.

Lee became the first of Maccagnan's first-round picks to be jettisoned from the roster. The other four -- defensive tackle Quinnen Williams, quarterback Sam Darnold, safety Jamal Adams and defensive end Leonard Williams -- were all top-six picks.

In Kansas City, Lee should get the chance for playing time.

The Chiefs, with one of the NFL's worst defensive teams last season, have undergone a dramatic overhaul on that side of the ball. Among the changes is to a 4-3 defensive system.

At least one of the starting linebacker spots is up for grabs after the Chiefs traded one of last year's starters in Dee Ford and released another in Justin Houston. Anthony Hitchens, a free-agent addition last year, and Damien Wilson, who signed this year, figure to be two of the starters. The third spot is up for grabs, and that's where Lee could get a look.

The Chiefs also have Reggie Ragland, who started 15 games last season, and Dorian O'Daniel, a third-round pick last season.

ESPN's Adam Teicher contributed to this report.