Arsene Wenger managed Arsenal for a legendary 22-year spell, but he did make several mistakes in his goalkeeping decisions over the years. Moving on from Invincibles shot-stopper Jens Lehmann proved to be a difficult task, as funds were tight when trying to replace the underwhelming Manuel Almunia. Mark Schwarzer was targeted despite his old age during his Fulham days, but a deal could not be completed and Wenger was forced to stick with Almunia until the emergence of Wojciech Szczesny. Szczesny won the Golden Glove in the 2013-14 season, but a fallout with Wenger saw him dropped and eventuall…