Wolfsburg manager Steve McClaren has admitted the club needs change after they crashed out of the DFB Pokal.

Wolfsburg lost 3-1 to Bundesliga 2 side Energie Cottbus on Wednesday and McClaren's immediate future at the club has been put in jeopardy by their wavering on-field fortunes, which sees them in 13th place in the Bundesliga and without a win in their past eight games in all competitions.

"It was just not good enough today; it was not good enough throughout the whole first half of the season," McClaren said after the round-of-16 defeat.

"I am disappointed and frustrated. We have hit bottom. The club needs changes now. No-one knows what will happen in the next days."

Wolves general manager Dieter Hooness said he cancelled a trip to decide on McClaren's future with the club.

"I need to allow this to sink in. It is not easy to return to your day-to-day business after such a result. I will not sleep well tonight," Hooness said.

"I had booked a ticket for a flight on Thursday which I will not board. This result has turned the holidays upside down. But I will not act without considerable thought."

McClaren is in his first season with the 2009 German champions and is the first English manager in the Bundesliga.