FLORHAM PARK, N.J. — In the end, it was an “easy decision” for Eric Decker.

During his weekly guest spot on ESPN Radio, the Jets receiver said he’ll undergo surgery on his right shoulder in the next week or two.

“It just kind of stayed the same, even got a little worse,” he said Thursday of his partially torn rotator cuff. “ . . . Getting surgery was really going to be the only answer.”

Decker, who played in only three games this year, was officially placed on injured reserve Wednesday. He described the pain as “someone is kind of stabbing you.” As for his recovery timetable, Decker said it’ll be six to eight months before he’s at full strength.

Second-half stalls

Offensive coordinator Chan Gailey said “execution” is to blame for the team’s offensive struggles in the second half of games. “That’s the bottom line,’’ he said. “We’re getting behind in the sticks and then we’re missing our third downs. We can’t miss third down-and-shorts, and we did that.”

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During their three-game losing streak, the Jets have been outscored 37-7 in the third and fourth quarters. So what exactly can Gailey do to help his unit as the games go on? “I can help us get better plays to run and put us in a position to hopefully be successful,” he said. “It falls to me to get that done.”

D-line doing the best?

The group’s sack totals may be down, but defensive coordinator Kacy Rodgers said the defensive line is performing the best of any group. “With all due respect to everybody, I thought they might be the best position playing on our team,” he said. “Those guys, I really think they’re really doing a good job. We’re, selfishly, as a coach, we want more, but they’re doing a really good job.”

Jet streams

Darrelle Revis did individual drills for the first time since suffering a mild strain in his left hamstring and hopes to play Monday night . . . Nick Mangold (knee) and David Harris (hamstring) did not practice for a second day. RG Brian Winters (concussion), TE Austin Seferian-Jenkins (ankle), DE Muhammad Wilkerson and LT Ryan Clady (rest days) were limited. WR Jalin Marshall (torn labrum), CB Darryl Roberts (shoulder) and QB Bryce Petty (shoulder) practiced fully.