The Aston Villa centre-back believes the club suffered a "nightmare" season because of the lack of stability on the pitch and in the dugout.
Villa suffered a horror year in every respect, winning just three Premier League matches and racking up the third-lowest points tally in the top-flight since its re-branding in 1992 as they were relegated for the first time in nearly three decades.
Not only were the club's performances on the pitch abject, but there was no calming influence off the field either as they went through two permanent managers and saw a host of boardroom changes, several of which have since been undone in undignified fashion.
Okore only played 14 times all season long due to injury and, latterly, a fall-out with caretaker manager Eric Black in the final weeks of the campaign.
The Danish defender admitted that the club's season as a whole has been "a nightmare" and suggested that it was the lack of continuity at the club which caused such catastrophe.
Okore told bold.dk: "It has been a nightmare, I think. It's been a long season, especially when you consider the way we played and the results we got. It has not been fun to lose every weekend.
"When there is no continuity in a club, it's hard to have stability in the squad and in the game. We changed our game many times, as we have changed several managers, and it was not always the right work, for things take time.
"It's a bit unfortunate that we have changed manager so many times, and it was certainly not easy."
There will be even more change coming at Villa this season, as they look to appoint a new permanent manager in the near future ahead of an inevitable summer of overhaul as they look to a first season outside the top flight of English football since the late 1980s.