The Hornets announced on Friday that their Spanish boss will leave Vicarage Road at the end of what on the face of it has been a successful season for a newly-promoted Premier League club.
They are destined for a mid-table finish and reached the semi-finals of the FA Cup, beating holders Arsenal along the way
Yet that does not appear to be enough for owner Gino Pozzo, who has made a decision which Bilic strongly condemned.
"It's crazy," he said.
"I'm sorry for Quique
It's completely wrong, they've had a fantastic season.
"As far as I know if someone had offered Watford that...before the season everyone predicted they were likely candidates to go down
Yet they were never in danger and until January or February they were in the top eight, or top 10.
"Add to that they play good football, and add to that they were in the semi-final of the FA Cup, beating Arsenal away.
"They had a great season, the place was buzzing, it was a season to be proud of
It says it's more important how you finish than how you start but it is nonsense for me
People say it's common in Europe, it's common in England, but it's completely wrong, it's sick."
Source : PA
Source: PA