David Moyes says he has "a point to prove" at West Ham and confirmed he is in talks with Stuart Pearce over joining his backroom team.
Moyes, who had been out of work since resigning from Sunderland following their relegation last season, replaced Slaven Bilic as Hammers boss after agreeing a six-month deal.
"I think I do have a point to prove - sometimes you have to repair things and maybe I've a little bit to repair," said Moyes, whose primary focus is on shoring up a Hammers defence that has conceded 23 goals in 11 Premier League games.
"I've been a football supporter all my days and I love to see attacking play and goals. I want it to be entertaining but that's no good if you're shipping in goals every week because you can't win the games. You have to start defensively.
"All the best teams have the best defences. We have to start from there, try and get a few clean sheets, find out whether three or four at the back is best for us with the players available, and get ourselves bedded down.
"I think we have enough good attacking players to cause teams problems and score goals. Let's see if we can find a way to stop conceding goals."
Moyes says both he and the West Ham board are "more than comfortable" with the short-term deal and believes such contracts will become commonplace in the future.
"You can see the turnover of managers at the moment," he said. "In the future I think managers will only be signing one-year contracts.
"If I had taken over West Ham at the start of the season, I'd have said, 'let's do one year at a time'. As it is I'm taking over a couple of months into the season and I'm happy to go to the end of it.
"It gives me a chance to look at the east end of London, to work at the club, and it also gives the supporters and board a chance to see David Moyes working."
Moyes acknowledged some sections of the West Ham support have met his appointment with negativity, but hopes he can win them over.
"I'll do everything I possibly can to get West Ham as far up the table as we can, to try and give them the best team possible," he said.
"We need the players to take responsibility as well. It can't always be the managers who are bad.
"The players have got to show they're good enough to play for the club, that they're big enough to play in this stadium and in front of a really passionate support."