Gary Neville says he may never return to coaching and feels he was "chucked overboard" by the Football Association following England's dismal display at Euro 2016.
The 41-year-old left his role as Three Lions assistant manager alongside boss Roy Hodgson and coach Ray Lewington after the 2-1 last-16 defeat to Iceland in Nice at the end of June.
Neville, who had an unsuccessful spell in charge of Spanish side Valencia last season, believes he was unfairly treated by English football's governing body and says he has interests other than coaching to focus on.
Neville told Sky Sports News:
I've been to eight tournaments as a player, three as a coach, I'm probably the only English coach that's managed in LaLiga at a top four club in the last 15 to 20 years, even if it's only for four months,"The FA invested in me for four years. I'm the most experienced I've ever been yet you get chucked overboard.
I'm only 41 years of age and you're regarded as a failure and the reality of it is the investment has to come through defeat and victory.
It could be that I'm no longer ever a coach in football, that's not a loss. Some people might think it is but it's not a loss to me. It's a decision that could have happened anyway.
Gary Neville says it will be "very difficult" for him to get back into coaching because he has so many other commitments.
The former Man United defender was dismissed by Valencia after 16 matches in charge last season when he could only guide them to three victories in that period.
Along with some of his former United team-mate, Neville is a part-owner of Northern Premier League side Salford City, while he also has various other interests in the hospitality industry.
Speaking to Sky Sports, he said:
I always say 'never say never' because my love of football is too great, but I genuinely believe it will be very difficult for me to go back into coaching because of my commitment now to so many different things.
It's my obligation to deliver Salford City to the Football League. It's my obligation to roll out Hotel Football internationally.
It's my obligation to deliver high-end restaurants with Michael O'Hare. It's my obligation to deliver St Michael's, which I believe is the best development in Manchester.
I can't go back into coaching now in the short term – the next five years – and the reality of it is I don't want to. It could be that I'm no longer ever a coach in football but that's not a loss. Some people might think it is but the fact of the matter is it's not to me.
Former England assistant coach Gary Neville has reacted angrily to a report that his relationship with Roy Hodgson deteriorated at the EurosRead the full story ›
Valencia have dismissed Gary Neville less than four months after his surprise appointment as head coachRead the full story ›
Gary Neville's miserable run in charge of Valencia continued as a second half goal by former Manchester United team-mate Giuseppe Rossi condemned his side to a 1-0 defeat at local rivals Levante.
The Italy international pounced on slack defending by the visitors from a throw in to volley into the far corner midway through the second half to give struggling Levante a deserved lead, although they remain bottom of the Primera Division in spite of the win.
Valencia meanwhile suffered a third consecutive defeat in all competitions and missed out on the chance to move into the top half of the table.
Under-fire manager Gary Neville admits his Valencia team must finally win a league match this week.Read the full story ›
Gary Neville's position as Valencia manager looks increasingly insecure after his struggling side slumped to yet another defeat.
Sunday's 1-0 loss at Real Betis left Valencia just four points clear of the relegation zone, extending the England coach's wait for his first Primera Division win.
Neville has been in charge at the Mestalla for more than two months and vowed to fight on, but admitted he is running out of time to turn things around.
I said before I came that I would be judged in five months. The obituaries have already been written - I have been judged in six weeks.
Our last two league matches were not performances that deserved two defeats, but the reality is that they are two defeats and I am aware of the consequences when you don't get good results.
What matters are results. We knew this would be about one or two moments and they have not gone our way. The line between defeat and victory is so fine.
Gary Neville had to fend off questions about his Valencia future after his side slipped to a humiliating 7-0 defeat.Read the full story ›
Gary Neville praised his Valencia side's ability to bounce back after coming from behind twice to scrape a 2-2 draw with Rayo VallecanoRead the full story ›
Gary Neville does not see himself managing Manchester United in the future and insists he's focused on succeeding at Valencia.
No, I don't see myself managing Manchester United at all.
I know what I want to do in my life, and that's not something that's in my mind.
From my point of view, this is important for me and a valuable experience. I'm aware I need to succeed.
Succeeding for me would be knowing these players have improved dramatically.
Results come and go, I know we're in a results-driven business, but I have never looked at football like that since I've finished playing. I did when I was a player.
As a part-owner, I think about moving forward in the next five, 10 years.