Birmingham’s crisis continued after several senior management staff left St Andrew’s.
Chief financial officer Roger Lloyd, financial controller Gary Moore and club secretary Julia Shelton have all left the club, Football Paradise understands.
There has been friction at the top of St Andrew’s with the club likely to be hit with a punishment from the English Football League for breaching Financial Fair Play rules.
Management on the administration side of the club had become increasingly concerned and were considering resigning before the weekend, but there is no suggestion boss Garry Monk is ready to walk away.
There had also been concerns from the board with some of the senior management staff, which pre-dated chief executive Xuandong Ren’s time at Blues, with the owners becoming disillusioned themselves with how they were acting.
A split at the top of the club had appeared and the departures at St Andrew’s reflect the problems both sides are dealing with.
The amount of information owners Trillion Trophy Asia – who are based in Hong Kong- receive from Ren is also not known.
Ren has tried to resolve the issue with the EFL on his own, independently to other staff, and promised Blues’ problems would be solved once Jack Butland was sold by Stoke for over £20million.
The goalkeeper – who Birmingham had a 15 per cent sell-on clause on – remained at Stoke despite interest from Chelsea.
It has led to tensions at Birmingham with the club under a transfer embargo with City having failed to heed any warnings or plan for FFP.
Birmingham continued to make bids for players despite being under embargo, offering Bournemouth £5m for Lewis Grabban.
The EFL were particularly unhappy with the signing of Kristian Pedersen from Union Berlin while Birmingham were under a soft embargo.
The defender joined before they were hit with a full embargo in July and the EFL refused to register him.
Birmingham ultimately came to an agreement, allowing them to be able to sign five players before last week’s transfer deadline but they are likely to be punished by the EFL.