Giovanni Trapattoni has hit back at criticism from Brian Kerr and says the matter with James McClean is now resolved after receiving an apology.
Trapattoni and his Republic of Ireland squad landed in London in the early hours of Saturday morning ahead of their friendly against Oman at Craven Cottage on Tuesday.
The Italian has decided against kicking McClean out of the party after the Sunderland winger publicly said sorry for a foul-mouthed tweet expressing frustration at being left on the bench against Kazakhstan.
Trapattoni wants to draw a line under the whole issue, but has told the 23-year-old he must remain patient.
"We move on. There is no problem," said the Republic manager.
"We spoke with him and the other players. He was very apologetic.
"I always say to the players you must have a lot of patience.
"When you are young sometimes you say something you regret.
"I don't know if he will start against Oman. If he doesn't he may play second half."
Ireland put on one of their worst performances of Trapattoni's reign on Friday when they scored twice in the last two minutes to escape with a win over Kazakhstan, a country who are ranked 116 places below them.
The sub-par performance did not go down well with Kerr, who managed the country from 2003 to 2005 after being in charge of the Under 21 set-up.
The 59-year-old, writing in the Irish Times after the narrow win, said Trapattoni's communication skills with his players had become "farcical", his team selection was "dodgy" and that the Italian had made a mess of preparations for the 3,000-mile trip to the former Soviet Republic.
Trapattoni has now turned the tables on Kerr, however, claiming that the former Drogheda United manager did not understand how difficult it was to get a win in Astana, pointing to Germany's game there two years which the visitors won 3-0 after going in at half-time goalless.
"Maybe Brian Kerr did not see the game of Germany in Kazakhstan. I saw the game, maybe if he saw the game he can understand why it was difficult," Trapattoni told a press conference.
When asked if he had left it too late by flying to Kazakhstan on Wednesday, allowing the team to have just one training session in Astana, Trapattoni told the gathered press: "This colleague of yours, he was a manager, he must think about what he says. The players come to you three days before and they've played one game in the league.
"It was not easy there. It was difficult with the pitch.
"On this pitch Sweden and Germany will find it hard there."
While Trapattoni is keen to have a look at his young players against Oman, he is also pushing ahead with plans to bring Damien Duff out of international retirement.
"We invite him to the game," Trapattoni said.
"Maybe I can speak with him afterwards."