Norwich City have appointed Paul Lambert as their new manager.
The former Scotland international, 40, has joined the Canaries from League One rivals Colchester United after less than a year at the Community Stadium.
Bryan Gunn was sacked as Norwich boss on Friday after only two games of the season - including an opening-day 7-1 loss to Lambert's Colchester side.
Lambert will be joined at Carrow Road by assistant boss Ian Culverhouse and football operations manager Gary Karsa.
The two clubs are yet to agree a compensation package over Lambert, who will watch Norwich's game at Brentford on Tuesday before taking full charge against another of his former clubs, Wycombe, on Saturday.
Meanwhile, Jo Dunne has been put in temporary charge for the U's League One game with Gillingham on Tuesday.
Lambert, who has signed a rolling contract, told BBC Radio Norfolk: "It's hard [to leave the U's] because of the rapport I had with Colchester, the people were great and they are still sitting top of the league at the minute.
"But you look at the size of this club and the fanbase it's got. It's got unbelievable potential to do something great and that's what I want to try and do."
Speaking about joining City after thrashing them 7-1 as Colchester boss, he added: "What happened was severe, there's no doubt, and I thought at the time the result might have hurt a lot of people in this neck of the woods.
"It's up to us to give the lads a bit more confidence than they've got at the minute and drive this club on.
"I think there's been a lot of new lads brought in this summer and I'm going to give everybody a chance," he added.
"We'll try to get them all confident and try to play the game the way I think it should be played."
Canaries chief executive David McNally said the board had unanimously agreed to appoint Lambert.
"We looked at the criteria that we agreed as a board and clearly he came to the top of the pile in terms of who we wanted to go after," he said.
"We wanted somebody who could motivate the players, galvanise the team, most importantly who could improve the players on the coaching pitch day-in, day-out and somebody with managerial experience in the lower leagues.
"His track record is very, very sound."
And he added that Lambert's 7-1 win over Norwich on the first day of the season was not the reason for appointing him.
"In isolation the game isn't really connected with what we've done," he said. "It was a bad day at the office for us, it was not a freak result it was a very poor performance and one that we all struggled to get over.
"But in isolation it was one game, we've taken the decision to change the manager based on seven months not one game."
Colchester chief executive Steve Bradshaw has confirmed the club are seeking compensation for Lambert's departure.
We have built this team over the past eight or nine months and will seek as part of the compensation clause that no players will be able to leave for Norwich in the next season
Colchester chief executive Steve Bradshaw
"We believe there has been a breach of League regulation 20 and so unless compensation can be agreed we will go to tribunal.
"We are six figures apart in terms of compensation."
And Bradshaw added that the club would do all they could to prevent players following Lambert to Carrow Road.
"We have built this team as a club over the past eight or nine months and we will seek as part of the compensation clause that no players will be able to leave for Norwich in the next season," he said.
Despite his sorrow at losing Lambert, Bradshaw was keen to praise the impact that the former Champions League winner had on the Essex club.
"I have great respect for Paul and everything he has done," he said.
"His team has literally helped to turn the club around and it would be wrong not to thank him and [assistant manager] Ian Culverhouse."
Bradshaw also confirmed they had already received a lot of interest from prospective replacements for Lambert.
"We've had several phone calls from some absolutely top-draw applicants and we will consider their applications and go through a due process that is likely to take about three weeks," he said.
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