Former Arsenal midfielder Stewart Robson has launched a stinging attack on Arsene Wenger's management capabilities.

Under Wenger's guidance the Gunners have not won a major trophy since 2005 when they defeated Manchester United on penalties to win the FA Cup.

Wenger's side passed up another trophy chance last night when they were knocked out of the League Cup at the quarter-final stage by Bradford City of League Two.

Following that result, Robson stated his belief that it is time for Wenger to vacate his post.

"Against Bradford, tactically, Phil Parkinson showed he was a better coach than Arsene Wenger," Robson said to Sky Sports News. "As usual there were no instructions coming from Arsene Wenger on the touchline. Yes, he will rant at the fourth official, rant at the linesman and rant at the referee but he needs to start doing some actual coaching both in games and on the training ground.

"Arsene Wenger doesn't see the danger, he doesn't read the game. When things are going wrong and the team are making mistakes, he doesn't rectify them and the reason he doesn't is because he doesn't know what the mistakes are.

"In my view it was time up for him three or four years ago. The fans have stuck by him, they always say 'In Arsene We Trust', but I don't think that can be the case anymore. Tactically Arsenal are all over the place, they are under prepared defensively, and he doesn't understand the game well enough. If you have that combination, you will always lose several football games."

Wenger has been in charge of Arsenal since 1996.