Grant was axed on Sunday following their defeat at Wigan that sealed their relegation to the Championship.
The vice-chairman said in The Sun: “Avram was given the best possible conditions to do the job.
“There were no silly targets set, no talk of Europe. We just said: ‘Keep us up’.
“He was given extra training-ground staff and his personal needs met – including a driver, a new office and an upgraded expensive football analysis system.
“When things got tough, we backed him again.
“January signings like Wayne Bridge, Robbie Keane and Demba Ba saw us put our money where our mouth is. Again, no big names left the Boleyn.
“A good man, Avram was given every chance but he was sadly unable to deliver.”
