Dundalk have confirmed that the FAI have made an approach for their assistant head coach, Ruaidhri Higgins, but they are unhappy with the manner in which it has been made.
Higgins looks set to link up with former Lilywhites manager Stephen Kenny in the Republic of Ireland set-up, after Kenny was named as the new senior manager of the national team.
The 35-year-old Higgins, who has spent the last 16-months as Vinny Perth's assistant at Oriel Park, will almost certainly join Keith Andrews, Damien Duff and Alan Kelly as part of Kenny's backroom staff.
However Perth is angry about losing his assistant and he believes his side have been treated poorly by the FAI.
"It's disappointing that a member of staff that I rate so highly has been approached to move elsewhere," said Perth.
"The manner in which the approach was conducted is something that I’m not happy about and I will leave that with our board of directors and the FAI to deal with.
"I feel very strongly about protecting our staff and players and the board have been exceptional with this since I took over. We have people under contract and those contracts need to be honoured and respected."
Perth acknowledged that it is a 'wonderful opportunity' for the Limavady man however.
"We fully understand that this is a wonderful opportunity for Ruaidhri," he said. "I have always said that to win a league title you need league winning staff and I have definitely had that. He has played a key part in our success.
"My job now is to protect Dundalk FC and I have time on my side to make whatever decisions need to be made over the next couple of weeks.