One flop Mikel Arteta signing is now closing in on a move away from Arsenal in this summer transfer window. In general, Arsenal manager Mikel Arteta has maintained an impressive record in the transfer window. That is something that the Spanish coach must maintain, and even improve upon, this summer. Arsenal are seeking to strengthen their squad in a number of key areas, having been linked with a number of targets. This is a vital transfer window for the Gunners, as the North London club are looking to overtake Manchester City and finally succeed in beating them to the Premier League title next…