The theme of the Jets offseason is to get more playmakers.

And Gang Green still views adding a No.1 cornerback as a need.

Last season, the Jets’ cornerback unit was led by second-year Bryce Hall and rookies Brandin Echols and Michael Carter II. They all flashed starter ability, but with limited playing experience, also had their struggles.

Hall was the best of the group and produced 16 pass breakups, which was fifth-most in the NFL. Echols had the most interceptions (2) among the three players, including a pick-six against the Dolphins. And Carter II was solid throughout the year.

One of their biggest issues, however, was defending on third down.

When targeting Hall, QBs produced a passer rating of 129 as he allowed three touchdowns and 22 receptions on 31 targets. Hall broke up three passes.

Carter II allowed 13 receptions on 23 targets (56%) with two pass breakups and had a 57% tight window percentage.

Echols allowed a passer rating of 96 with two pass break ups and 11 receptions on 18 targets (61.1). Echols didn’t allow a touchdown in those situations.

This is something the Jets want drastic improvement on. And Robert Saleh believes great corner play can help the Jets on third downs.

Whether the Jets add a new corner through free agency (or the draft), the new addition would create a competition for Hall, Echols and Isaiah Dunn for the other cornerback spot — the coaching staff believe Carter II is a legitimate NFL starter.

Here are four players the Jets could look at.

J.C. Jackson — Patriots

If the 26-year-old hits the market, Jackson’s service will sought after as a premier ball hawk, something the Jets sorely miss after snagging only six interceptions last season. Over the past three seasons, Jackson logged 24 interceptions, the most in the NFL over that time span.

During the 2021-22 season, Jackson was one of the best cornerbacks in the NFL and earned Pro Bowl honors. He snagged eight interceptions, 23 pass breakups and QBs had a passer rating of 48 when targeting him.

On third downs, Jackson forced nine pass breakups with two interceptions and QBs completed only 48% of their passes.

Jackson is a good option and would elevate the Jets secondary on paper. But when talking to some members in the Jets building they seemed iffy about acquiring Jackson.

So we’ll see if the Jets go after him, but it makes sense on paper.

Carlton Davis — Buccaneers

Davis, 25, is expected to secure a big payday.

In 2021, he only allowed two touchdowns in coverage with 11 pass breaks up, and QBs only completed 53% of their passes when throwing in his direction. On third downs, QBs completed 48% of their passes.

Davis is more than comfortable playing man-to-man coverage, which the Jets ran often. They were top-five in man usage according to TruMedia.

The Buccaneers blitzed almost 40% of their defensive snaps, according to Next Gen Stats, which left Davis in man coverage in some of those instances. His best year was in 2020 when he registered 18 pass breakups, tied for second most in the NFL, with four interceptions. QBs completed only 60% of their passes on 99 targets, third most in the NFL, so he produced against a high volume.

Ahkello Witherspoon — Steelers

Witherspoon, 26, played for the 49ers under Saleh from 2017-2020 and produced 24 pass breakups with four interceptions. So there’s a familiarity with his the system.

After the Seahawks signed him last offseason, he was traded to the Steelers midway through the 2021-22 season. With the Steelers, Witherspoon played nine games and logged three interceptions.

On third downs, Witherspoon forced six pass breakups, which was fourth most in the NFL, with an interception on 12 targets. He allowed only four receptions.

Casey Hayward — Raiders

Hayward is an older veteran — he turns 33 during Week 1 of the 2022-23 — season but he played well in 2021 and will warrant a cheaper contract.

He signed a one-year, $2.5M deal with the Raiders last offseason, but it paid big dividends. QBs completed 54.9% of their passes when targeting Hayward and he produced nine pass breakups in his 17 starts.

He was elite on third downs too. QBs had a passer rating of 14 when throwing in his direction.