"I've learned a lot as a 22-year-old boy now and I've been through good times and bad times, it's part of football", said Januzaj.
The Scot has made a decision to run the rule over the youngsters as several of the senior players are away on global duty. "I'm in a hurry and they need to be in a hurry too", he said.
'It's a big job we have in hand now but I'm sure with everybody together, we can get the right results between now and the end of the season'.
In his unveiling video on West Ham's Twitter account, Moyes attempted to rally the fans, saying: 'I'm really looking forward to meeting the supporters, being in the stadium with them. I think it's good for West Ham as well, they've got a good manager. "I can only tell eight of them just now but I'll tell the other eight when they get back [from worldwide duty]".
Moyes' first game will come after the global break when West Ham take on Watford at Vicarage Road on November 19.
Moyes gave a fairly polished performance, while also doggedly defending his reputation.
Moyes managed Everton for 11 years from 2002 before leaving the club to replace Alex Ferguson at Manchester United but was dismissed after just 10 months in charge.
Vice-chairman Baroness Karren Brady wrote a highly critical newspaper column about that incident, and Moyes was asked about his relationship with someone who runs the club for Sullivan and Gold. If I'd taken over at the start of season I'd have said a year at the time. I don't think he did that.
"I do have a point to prove". 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.
Bilic, the trained lawyer, often gave long-winded answers in which he would tease a conclusion from himself after several minutes of considering the issue, often with great humour and self-awareness. He didn't, and if he carries on like this fans could actually become even more disgruntled. "I hope that the future is great for West Ham".