If Arsenal win the title this season, it will be a very satisfying result for Arteta, and for Arsenal, their long wait for the title has come true. One valuable lesson can be learned if Arsenal can maintain consistency and become EPL champions this season. The lesson is to be patient with the coach they have and let the coach make the squad according to the club's budget based on his judgment without interference from the club directors. That patience will eventually give the club a title. of course this is just an imagination for know, since to early to predicted if Arsenal will win the league. Just in case they are get the title. 
As things are going into favor of Arsenal look like fans two decade wait is going to end as they last time won this title in 2003 to 2004 season which was also historic because they lost no match and won 26 and draw 12 which is surely another one of the most amazing achievements for them even this all is too early but their performance and quality is at their best and after legendary Arsenal coach Arsen Wenger it's going to be great for this club because young Arteta done good job even too much criticism happened against his strategy and way of play in early weeks but still he has done good job and now reach at the best level in Premier League which is never been easy for anyone.