Ernesto Valverde cannot rule out leaving Athletic Bilbao at the end of the season.
The coach usually lasts two years at a club before moving on.
"Two years is a long time. I've never spent longer than two seasons at the same club.
"Even at Athletic, I've never had a great deal of continuity; we all know what football is like - the day to day routine takes its toll on everyone: players and the coach. And you are demanded to get instant results, when they don't come, it's the boss who is generally in the firing line."