Steve Cotterill admitted he has joined a club with ‘more stability’ following his Nottingham Forest switch.
The 47-year-old was yesterday officially unveiled as the new City Ground boss.
Cotterill walked out on Pompey on Friday afternoon after 16 months in charge.
It’s a decision he has branded as ‘emotional’.
But he conceded he couldn’t turn down the opportunity to take charge at Forest.
He said: ‘Maybe there is more stability here. It was unique what happened there (Pompey). I went through a few owners there. It was three if you include the administrator.
‘We have been through a lot down there over the past 16 months.
‘We went through a lot together and it was very, very difficult to leave.
‘But you do not get many opportunities in life when it comes to managing Nottingham Forest.
‘The fans were fantastic with me at Portsmouth, but this kind of chance does not come along very often.
‘Leaving the dressing room was tough, given the relationship I had with my staff.
‘We were a big family and I have never been through anything like what we went through there.
‘I don’t think any manager in football has.’
Meanwhile, Cotterill revealed he took calls from his ex-players following their 2-0 victory over Barnsley.
He added: ‘I had calls from their dressing room on Saturday night.
‘That was the kind of relationship I had with them. We came through probably the worst spell in Portsmouth’s history.’