Croatian was dismissed following West Ham's disappointing start to the season.
West Ham United vice-chairman Karren Brady has revealed that sacking manager Slaven Bilic was the most difficult decision that she and joint chairmen David Sullivan and David Gold have ever had to make in football.
Bilic was sacked by West Ham earlier this month following a miserable start to the season that has left the club in 18th place in the Premier League.
David Moyes has since been appointed to replace the Croatian but Brady insisted that it wasn't an easy decision to relieve Bilic of his duties.
Brady wrote in her column for The Sun: "No one likes to sack anyone. It’s not easy, especially when you genuinely like them, and I take no pleasure from it — but sometimes there is just no alternative.
"Everyone on the board enjoyed a good relationship with Slaven and supported him at every opportunity.
"Every pre-season requirement, every winter training break, every backroom member of staff, the complete refit of the training ground… whatever he wanted, we tried to deliver.
"He, in turn, was an honest man with integrity and intelligence and was furiously loyal to West Ham.
"So sacking this thoroughly decent man was one of the hardest things our board felt it had to do in 25 years in football."
Bilic got off to an impressive start in charge of West Ham after being appointed in 2015 but the departure of Dimitri Payet midway through last season hit the club hard, while the Hammers have also found it difficult to adapt to playing at the London Stadium.
West Ham were thrashed 4-1 at home by Liverpool in Bilic's final game as manager, by which point it had become clear that change was needed.
Bilic is still well respected by many West Ham fans but now the focus is on Moyes, who takes charge of the team for the first time against Watford on Sunday.