Former Gunners captain Adams says that Wenger has not rebuilt a good enough defence at the Emirates Stadium.
Former Arsenal captain Tony Adams is quoted by The Sun as saying that Arsene Wenger's failure to reconstruct a strong defence is the reason the club has failed to win a Premier League title since 2004.
The Gunners are currently third in the Premier League, level on points with their North London rivals Tottenham, just two points behind league leaders Leicester City after a dramatic win over the Foxes on Sunday.
Wenger's side have let title challenges slip on several occasions in the 12 years since their last triumph, and Adams is adamant that his former boss has to take the blame for the club's dry spell.
He is quoted by The Sun as saying: "[Wenger] has got a great offensive unit, but I think that he is neglecting the defensive side and I think that’s where the problem lies.
"If they strengthen that area I think that they could go and win the league, but I think that’s the error of the team. He sticks to his principles and he wants his team to be offensive.
"When Sol Campbell and Ashley Cole left [in 2006] they were the last of the old guard who understood how to defend and prioritise that department. I think that when they left there was no one else that understood that and the club hasn’t been the same defensively since."
Adams spent his entire career with Arsenal, playing close to 700 matches for the Gunners in all competitions and becoming club captain at the age of 21 in 1988.
He was a stalwart of the side under George Graham and in early stages of Wenger's reign, and won four top-flight titles and three FA Cups in his time at the club's former ground Highbury.