The January transfer window could prove a very difficult one for Mikel Arteta and Arsenal to navigate this month. Just a few weeks ago, the club looked to be in excellent shape, and it almost seemed as if the window could be ignored. However, back to back defeats against West Ham United and Fulham have completely changed the club’s momentum. Suddenly Arsenal look worryingly bereft of goals, creativity and attacking flair. Neither Mikel Arteta or the club’s hierarchy will be keen to produce a knee-jerk reaction, however, the January transfer window does now seem an important opportunity for Ars…