De Boer has been linked with numerous Premier League clubs in the past couple of years.
De Boer left Ajax in the summer and has been linked with a move to the Premier League, but it is not the first English club he has been linked with. Even during his time in charge of the Eredivisie giants he was strongly linked with a Premier League switch.
In fact, the Everton job was one that he has been linked with, with the Daily Mail reporting that brother Ronald said he would do a good job at Goodison Park.
He was quoted, as per The Set Pieces: "He wants to fit with a club that believes in his ideas, that's important for him. Of course he wants to manage a team in the Premier League.
"Everton are a big club with great potential so it would be very interesting. There are probably more managers on that list, but I think he could do a great job over there."
Before Everton, it was Merseyside neighbours Liverpool who opted to sack Brendan Rodgers in October, but landed Jurgen Klopp as their manager shortly afterwards.
Nevertheless, Frank De Boer expressed his interest, along with that of Newcastle, and was quoted by the Liverpool Echo, saying: “I’m looking maybe for another adventure. If there is an interesting club that I think with my quality I can make that team better – if I can, than I will take that chance.
“They are fantastic clubs. Liverpool and Newcastle - with supporters behind them - it is a fantastic environment to coach but this year it is important for me to do well at Ajax and then we will see.”
Given that he seemed determined to stay at Ajax for the remainder of that season - and with both Liverpool and Newcastle changing their managers midway through the campaign - it would perhaps seem a little strange that he was linking himself with those roles...although a little tenuously.
Before that, there was Tottenham, with the Express picking up on comments he made to Dutch Television saying he would have happily taken the job at White Hart Lane, but they opted for Mauricio Pochettino instead in the summer of 2014.
He said: "If they wanted me, I would probably have said 'yes'. I was really close to a move to Tottenham, but they chose Pochettino."
The BBC reported that Tottenham denied having any contact with the then-Ajax boss, but it is all a clear indication that he has been after a move to the Premier League for some time. Although probably a fan's point of view, one would be concerned about how comfortable De Boer was being linked with other clubs while he still had a job to do at Ajax.
Southampton may well be a good fit for De Boer. They are a side in Europe next season - something which De Boer has plenty of experience of - and will look to try to consolidate their position in and around the European places in the Premier League again next year.
This is a man who has not been afraid to link himself with other jobs in the division; whether that is a cause for concern is entirely down to the club. But given the jobs De Boer has been linked to, it suggests a man that is confident he can succeed. Time will tell whether it is bluff or if he can match those words with success.