The sacked Fiji rugby coach, Inoke Male, says he was given no warning his contract was about to be terminated.
Male and four other employees had their contracts cut short on Monday.
It comes weeks after the International Rugby Board suspended direct funding of more than US$1.5 million to the Union, citing its failure to agree to the implementation of key recommendations from a major review.
The FRU says some of the positions have been made redundant, some will be re-advertised while the responsibilities of others have been absorbed by current staff.
Inoke Male says Fiji has improved from 16th to 11th in the world rankings under his coaching and says the Union should have discussed the issue with him beforehand.
"They just called me and gave me the letter. The CEO just called me in his office about 11 o'clock - this was yesterday, the same day that I was terminated. I think they should have asked me earlier or just given me a notice a few months earlier it could be better".
Inoke Male says he would still like to do the job but thinks the Union wants to hire an overseas coach.