RANGERS legend Derek Johnstone today warned Charles Green to stop interfering in football decisions at Ibrox.

Manager Ally McCoist is understood to have become increasingly frustrated with the club's chief executive over the past few weeks, with the latest reports claiming Green has requested he considers axing assistant manager Kenny McDowall and first-team coach Ian Durrant.

"There has to be only one man in charge of the football side of things and that is Ally McCoist," said DJ.

Cracks in their relationship first started to show over the weekend when McCoist rounded on Green for once again labelling his side "the worst Rangers team ever" and physio Pip Yeates and chief scout Neil Murray have also been axed.

Fears are now growing within the support that something will have to give in the coming weeks and DJ has made it clear Green must back off and allow McCoist to take full control of player recruitment and keep his own backroom staff – or spark civil war within the club.

He said: "Charles Green's remit is, has been since he came to Rangers on day one, the business side of things. But there has to be only one man in charge of the football side of things and that is Ally McCoist.

"What he must do now is let Ally get on with the football side of things, give him the backing he deserves and allow Ally and his management team to bring in their players and build McCoist's team. That is something that he has not been able to do over the last season."

He added: "I know the football has not been what we would have hoped but when you look at the mess Rangers were in last season, just days before the campaign started and how few players Ally had at his disposal, then he deserves enormous credit for delivering a league title in the most trying of circumstances.

"But he did that as part of a management team, along with Kenny McDowall and Ian Durrant.

"They are a solid unit who have been together for five years and won plenty, including a league title claimed from arguably the toughest campaign any Rangers manager has faced. So to suggest that Ally part company with them now is nonsensical.

"Right now Charles Green needs to back Ally and just let him get on with his job."

He went on: "I have a lot of respect for what Charles Green has achieved at Rangers.

"But over the last two weeks some very strange things have been coming out.

"The bottom line is, if these type of things continue to come out then the shareholders will make a decision on Charles Green come the summer, he knows that."