Flamini reminds me of Gattuso. A terrier who snaps at your heels and never gives opposition a moment’s peace. Flamini’s first spell at the club before moving to AC Milan was highly successful. There might be different reasons for this.
It might be tactical. Flamini seemed to flourish in a 4-4-2 system doing all the dirty work while been assisted by Fabregas. In a 4-3-3, he looks lost hence the reduced playing time. I highly doubt Wenger is going to change his system so Flamini will need to adapt and fast.
Another reason might be lack of a suitable partner. It is fairly obvious the Flamini-Arteta partnership is not working. Arteta has lost his speed and cannot cope with a fast paced environment leaving Flamini overworked. It is also worth mentioning a lack of attacking impetus when both players play together. Flamini will play better if he has a player like Ramsey and Kallstrom by his side.
It might be that Flamini is just not talented enough. He does not contribute too much in an attacking sense and this is crucial for an Arsenal outfield player. Patrick Viera was talented in defending and attacking. Even Alex Song weighed in with his fair share of goals as did Gilberto Silva. We only recently saw Flamini break his duck against Manchester City at the Emirates. It was a good goal too with precision so it looks like the potential is there. However fans criticized Alex Song for attacking too much and neglecting his defensive responsibilities. Finding the right balance is crucial.
Still, it is too early or presumptuous to pass judgement on this team. Frequent injuries and suspensions have meant that Wenger has not been able to establish his best midfield partnership. Keep in mind, Kallstrom is still settling into the side and Diaby is coming back from injury. I am very sure next season, Flamini will be an integral part of the side but he will need to adapt his game.