You can criticize the manager for tactical errors but its too easy to blame him for everything. (justarsenal.com)
These results were down to systematic failures; the poor team attitude, collective defensive failures, psychological weakness, tactical errors etc etc.. (justarsenal.com)
In addition to the above, he has made tactical errors with positional play of Ozil and Cazorla, not playing Campbell and Podolski, late substitutions. (justarsenal.com)