The Head Coach was left disappointed after the 1-0 defeat to the Silkmen at Boundary Park and gave his honest opinion again.
After a tough opening 45, Maamria was understandably frustrated at not getting a quicker reaction at home.
"I think in the first-half we were very, very poor. We didn't get close enough to them, we didn't get on the ball, we didn't do the basics of football.
"A home crowd of 4,000 turned up and we were looking to bounce back from last weekend's bad result.
"The first thing you've got to do is get tight and compete. Win the first, win the second, earn the right to play and play on the back of that.
"We've done none of that in the first-half, we started really slow. But to be fair I don't think Macclesfield had a shot in the first-half either."
He added: "But that's not a good start at home, we want to start on the front foot. We want to get the fans behind us and we want to try and score early and give us that confidence, we didn't do that."
After the interval there was a better reaction from Latics but the Head Coach wants to clamp down on the mistakes, especially when it comes to conceding fouls.
"Second-half we came out better, we created more chances going forward. But to be fair to give that silly free-kick that we did, something that I've been big on. It was a great free-kick and they took advantage of it.
"There's a lot of transition at the club over the last couple of years. There's a lot of bad habits that have creeped in and I'm trying to rectify that.
"One of the bad habits is how many free-kicks we give away. I keep highlighting it every week and I think we gave 18 free-kicks.
"Want I want the players to do is get close people, compete, keep them to one side and do the basics really. We're not doing that and we're giving way too many free-kicks away."
Still fairly new to club, Maamria understands the difficult task ahead but is determined and motivated to make things better, admitting the players need to take responsibility too.
"This is my hardest job. Because you inherit a group of players and you try and do the best with what we've got. It's very, very difficult I can't lie about it.
"I know what we need, it's going to need time and like I said there's a lot of bad habits that I want to get on top off.
"But I just want a team to compete, care about the badge and to show those fans that they care about the result and cover a bit of distance and do the basics well.
"I think the bright spots are. I think Jonny Smith had a terrific game on the front foot and is something I'm looking to build on.
"I think Chris McCann controlled, especially the second-half, when he got his legs going. He's a good addition to the team and I think he's going to give us a different dimension.
"I think Tom Hamer kept coming forward and is another one I've got to build the team on and I think Jamie Stott as well he came back to the team and did alright.
"So those players give me confidence to build something around them. But there is a lot there that need to have a good look at themselves."
He continued: "I've got to say this. I think in the past a lot of players especially have been hiding behind the owner who has been getting a lot of slack and I think the players need to have a look at themselves first because it's almost like passing the buck really.
"Stop the excuses now, it's time to stand up and show what you've got. They get looked after those players and they've got to step up to the plate.
"Oldham Athletic is a big club for League Two and that is nowhere near good enough."
A positive from the afternoon was that Maamria handed Lewis McKinney his professional debut, bringing him on midway through the second-half.
"It gives them a chance to develop in the Football League and I know the club have produced a lot of young players in the past.
"This is something that I'm looking at and it's good to see Lewis there. He came on and didn't look out of place, that will give him encouragement and like I said I will be playing Academy players if I have to.
"I've got to do whatever it takes to take this club forward."