He could of said.
I like to play attractive football, but I learnt from my time at Oldham that’s not always achievable with the pitches in the lower leagues, so it’s important we can adapt our style to the conditions as and when we need to.
Instead he said
My first job at Oldham was going fantastically well, but the pitch deteriorated very badly, and I had to change the way I played.
One sounds positive and ready to learn from mistakes.
The other sounds bitter and resentful, and accepts no personal responsibility.