Dick Advocaat left Sunderland last weekend, resigning after the side threw away a two goal lead to draw with West Ham United.

The managerless Black Cats currently sit second-from-bottom in the Premier League and have won just one game all season - that being a League Cup tie against fourth-tier Exeter City.

This week, the Dutchman appeared on Studio Voetbal, a show in his homeland, and revealed the reasoning behind his departure.

Manager made the decision after defeat at Old Trafford

Following the 2-2 draw with West Ham, Advocaat was questioned about whether he would still be the Sunderland manager the next day, with the team without a league win before October for the third successive season.

His response was not promising, with him stating that he didn't know what would happen, but he certainly did, as he walked the following day.

Speaking this week, he revealed that he had "already made [his] decision" prior to the Hammers' visit, but that "the club asked [him] to do the match against West Ham."

The 3-0 defeat against Manchester United is what prompted him to walk away, but he "really wanted to finish...in style," with the following game a chance to do so.

When Sunderland were 2-0 up inside 20 minutes, he looked capable of signing off in this manner, but their defensive frailties and inability to take other chances cost them in the end, with West Ham levelling at 2-2 in the second half before Jeremain Lens' second yellow of the day reduced the hosts to 10 men.

Advocaat says he's not right for the job

Speaking of his reasoning behind the decision to leave, Advocaat simply stated that "the struggle against relegation is not [his] cup of tea."

He felt he didn't have the passion and hunger for the job anymore, saying that "it was time for someone else to take over" because he had become "negative" and "didn't feel like [himself]."

Thus, he felt he couldn't help the team improve or get out of the rut they are stuck in, saying that he's "never had the habit to just stop" however, given the team's start to the season, he "had the feeling [he was] not the right man to be leading the team."

Furthermore, the manager cited his inexperience at struggling clubs as a reason why he wasn't right for the job, saying that he had "never been in this situation" and, therefore, "didn't really see any other solution."

He explained that the decision was not made for any reasons other than ones good for Sunderland, as he has "not asked for any settlement money, nor received any" and he is "100 per cent sure [he'll] never coach a club again."

Sunderland experience was a valuable one

Despite all the negatives that Advocaat endured on Wearside, he cites his time there as "a great experience."

The manager admitted that he doesn't "regret signing [his] new contract" and that he views Sunderland as "a very beautiful club."

He continued, saying, "what I have seen, no one can take away from me, and I would not have missed this for anything." The Dutchman was particularly full of praise for the fans, who he said "supported [him] until the last day," and, even when they dropped points against the Hammers, "there were three or four loud chants for [him]."

However, the job at the club was simply too difficult, because the "squad was simply not good enough."

Having worked with teams at the very top of the game for the majority of his career, or thereabouts, this was a new challenge for Advocaat, and one he struggled to cope with.

The Dutchman is used to having plenty of funds available too, but Sunderland do not have this, and the 68-year-old says that, because of this, the current situation is "inevitable" and one he had "no appetite for."

He says that "the club knew [they] had to strengthen" in the summer transfer window, but "the chairman never told [him] how much [he] could spend," and thus he was unable to really bolster the options he had available and build a squad capable of evading a relegation scrap.

Advocaat leaves door open for international adventures

Though Advocaat said he will never coach at a club again, and was prepared to retire in the summer, with Sunderland drawing him out of those plans, he did not shut the door on his managerial career.

The Dutchman instead used the opportunity to announce himself interested in a national team job, saying that "it would be nice to help a country qualify for the [European Championship]."

Advocaat has coached many national teams before - the Netherlands, the United Arab Emirates, South Korea, Belgium, Serbia and Russia - and has coached at the competition with the latter and his homeland. 

However, he stated that he "would really like to coach at a Euros" again, before calling time on his long and illustrious career.