Arsene Wenger has backed his squad rotation system and insists is succeeding despite seeing his side struggle during their 0-0 draw at home to Red Star Belgrade.Arsenal have progressed to the knockout stages of the Europa League after taking their total to 10 points from four Group H fixtures at The Emirates.And Wenger, who had changed his entire starting XI from that which had impressed in recovering from a goal down to defeat Swansea 2-1 in the Premier League last weekend, and those selected struggled to influence the game.“You could see tonight it was a very intense game, and with the number of games we play, we want to play in every single competition. I will continue (rotating) at the moment.“They started stronger than us; they played very well at the start. They played with a high pace, were dangerous on the breaks and defended very well."In the second half we dominated possession much more but lacked a bit of quality in the final ball, vision to find the right space and overall it was a fair 0-0.“It's frustrating when you don't score, but overall you understand that with many young players in the team, that's part of the learning process for them, playing these types of games.”Jack Wilshere - excluded from the latest England squad - Theo Walcott, Francis Coquelin and Olivier Giroud were prominent among those with ambitions of more regular football but who contributed little and will likely again be rotated for Sunday's fixture at Manchester City.Their latest display again demonstrated the extent to which Arsenal suffer when Mesut Ozil, Alexis Sanchez and Laurent Koscielny are absent, but Wenger said: 'We made four games, 10 points. So overall it's good if I can combine both (domestic and European football).