De Boer says Hiddink's ideas are old-fashioned and does not believe he is the right man to lead Netherlands to success. VI Images/Getty Images

Legendary Netherlands midfielder Ronald de Boer says that Dutch coach Guus Hiddink is "done" after the Oranje slipped to a 2-0 loss to Iceland, their second Euro 2016 qualifying defeat in their opening three games.

Two goals from Swansea midfielder Gylfi Sigurdsson handed Iceland their first ever victory over Netherlands, consigning Hiddink to a third loss in four games since he took over from Louis van Gaal.

Speaking as a pundit on Sky Sports after the match, De Boer, who represented his nation at two World Cups and two European Championships, claimed that Ronald Koeman should have been appointed as Van Gaal's successor after the World Cup, instead of handing Hiddink a second tenure.

"I think Guus Hiddink doesn't really have a game plan in my eyes," he said. "He doesn't show the guys 'this is the way we want to go.' I want to see, for example, running midfielders supporting Van Persie. I don't see any of this.

"There's plenty of games to play and change it around. But the pressure will be enormous now for Guus because there was criticism for his nomination beforehand.

"Koeman was ready to take over, he was really outspoken, he really wanted to take the job. With all due respect for Hiddink, he's 67 years old, I think he's done, in my eyes.

De Boer believes that Koeman should have taken over from Van Gaal following the Oranje's World Cup campaign. Julian Finney/Getty Images

"Of course he has a great record. His ideas now are old-fashioned. With Koeman he showed with Feyenoord he can really shape [a team] and also he knows the mentality of those young boys.

"Guus is more of a people manager with an arm around them. But those guys need guidance."

Netherlands finished third at the World Cup, with only a penalty shootout separating them from a final with eventual winners Germany.

However, De Boer believes that complacency is beginning to creep into the Oranje camp and suggests the same may be happening to Joachim Low's side after they crashed to their first qualifying defeat since 2007 when they lost to Poland on Saturday.

"You see Germany also struggling. When you have a good World Cup everyone expects you to walk over these kind of games but that's not the case," he added.

"I've always said if you're five percent less in giving everything then the gap is almost away. Normally when you give everything you're just a better team and you'll make the difference.

"But if you give five percent, or even three percent, you'll struggle. And I think that's what's happening with this team."

Netherlands currently sit in third place in Euro 2016 qualifying Group A -- six points behind joint-leaders Iceland and Czech Republic -- and will be hoping to close that deficit when they entertain Latvia in Amsterdam on Nov. 16.