why cazorla injury might help us

for me the front 4 we had against utd was just asking for a game with no goals, having rosicky, ozil, and carzorla, supporting a static target man wont get you goals. All three are good but far to similar, they are attack minded ball players, all have great vision and passing, but whats the point having all 3 on at once. so if cazorla is injured im not upset about it, he done nothing against utd but seems to escape criticism, I hope gnabry gets called up, hes been quality every time hes played for us and deserves a run of games. also hes got great pace, and has something to prove.