Matt Harvey has it. So does David Wright. Ike Davis tried to show it Wednesday, but only had warning track power.

It is accountability, which is the backbone to admit screwing up. We certainly didn’t see any the past few days from the Knicks, so let’s turn to the Mets. After losing Thursday to the Reds, Harvey was front-and-center about his performance and threw high-heat at himself.

ALDERSON: Who is to blame?

“It was a tough day – whether it was the changeup I couldn’t necessarily throw for a strike when I wanted to – and everything just crept over the middle,’’ Harvey told reporters at Citi Field. “It was one of those days. I didn’t execute. I didn’t do a good job. I’ve got to be a lot better than that. Nine hits is unacceptable for me. Obviously I wasn’t happy giving up any runs. We needed a big win, and I wasn’t able to do that.’’

What a reporter wants is for a player to be stand-up, to answer questions when the heat is on. Davis tried, although sometimes it seemed as if the listener would get frequent miles for following along with the answer.

I’ve never been enamored with Davis’ approach to hitting and explanations of his approach and thought process. This time, I didn’t care for his defensive explanation, although I appreciated the effort.

With runners on the corners in the ninth inning, Brandon Phillips dribbled a ball down the first base line. Davis, who misplayed a similar ball in the seventh that allowed a run to score, seemed confused on how to play the ball.

“I couldn’t get the guy at home,’’ Davis said. “[Shin-Soo] Choo runs really fast. And it was really slow to my backhand side. I was trying to get off the bag to get in the hole because it was a right-handed hitter.

“They usually don’t hit it down the line like that. The second bounce … I thought it bounced foul. In my head, I can’t turn two. I can’t catch it, touch the bag and then throw it to second and get the guy out, because then it’s a tag play and the guy [Choo] scores anyway.

“So, in my head, when I thought I saw it bounce foul, I pulled my glove back, because then we’d be 0-2 on Phillips [if it were foul] and the run wouldn’t score. That was my thought process on that. I still can’t tell if it was foul or fair on replays. But I definitely did think it bounced foul right before I got it. He made the call fair.’’

With no interpreters in the Mets’ clubhouse, let me attempt to boil it down: Davis said he couldn’t get the runner at home or get the 3-6-3 double-play, so he thought his best play was for the ball to go foul.

Only, Davis couldn’t tell if it was fair or foul. Given that, Davis’ mistake was letting the ball go and hoping for the right call. As a hitter, Davis wouldn’t stay at the plate and wait for the call, but run the ball out. So, why didn’t he do the same on defense? Why would he let the ball go on such a close play and hope for the best?

Maybe he wasn’t asked, but even so, he should have known what to do and admit the mistake of giving up on the play. What we got was a roundabout analysis that sounds like an excuse. Just catch the damn ball. If it is fair and a run scores, so be. Letting it go by opened the door for three to come in.

And, let’s cue the violins when he said, “everything that could go wrong for me now is going wrong.’’

Terry Collins is in a rough place, between telling the truth and not throwing his players under the bus. But, when his team is already ten games under .500, I’d like to see him go to the whip a little more. Didn’t he also promise a culture change and emphasis on fundamentals?

Where’s the fundamentals when all but two players in the normal starting lineup are on pace to strike out over 100 times? Where’s the emphasis on getting a good pitch to hit?

Two walks is a stretch in saying Davis is showing come-out-of-it signs. And, I don’t buy Collins saying Davis is not taking his offense to the field. His fielding has been miserable lately, so how could his offense not be a connection?

Collins didn’t get on Jon Niese for letting the first inning get away from him Tuesday. Nobody on and nobody out and he walks three and let three runs in. That’s inexcusable on any level.

Collins wasn’t forceful on getting on Jordany Valdespin last week when he should have been in full rip mode. And, I would have liked for him to get on Shaun Marcum more for not coming to camp in good condition. He did the previous spring with Ruben Tejada.

However, in fairness to Collins, it is hard to come down on a player if he doesn’t get the backing of the front office. Sandy Alderson, who over the weekend said the minor leagues wasn’t imminent for Davis, echoed that Tuesday, saying: “ … at this point we’re going to live with Ike for a little longer.’’

When Alderson came on the job, he promised a change in culture and stressed accountability. Immediately, we knew he was talking about Oliver Perez and Luis Castillo and both would be gone the following spring. Alderson also knew Jason Bay‘s lack of production after three years shouldn’t net him a fourth. Bay was a good guy, yes, but wasn’t hitting.

So, why be hesitant with Davis, especially if he’s considered a building block?

Alderson speaks like a lawyer with the way he dances around questions. All, I want to hear is: “I didn’t do a good job of putting together the bullpen,’’ and “I didn’t do a good job putting together the outfield,’’ and, “I should have handled things differently with Johan Santana this spring,’’ and, “If I stocked the farm system better, maybe I’d have more options to replace Davis.’’

And. ownership should show more accountability, if for nothing else, letting the Ponzi scandal distract the Mets and influence their off-season moves the past two years. Not to mention, signing off on contracts given to Perez and Bay.

And, don’t deny it hasn’t.

Be accountable. We deserve that much.