Sure. Arsenal bought players and spent a lot of money, but they are still finding it difficult to get what they want at the end of the season; however, to me this is not really from the players. I think the coach is the one who plans how these players will play their match, so for this he should be the one to plan what will suit these players and get what they want.
Arsenal are famous for their loyalty in buying players but in the end when compared to these few seasons with the beginning of Arteta's tenure the results are actually not too bad because their performance continues to improve even though it cannot be denied if the benchmark is the trophy then obviously Arsenal still cannot win anything even though they have poured a lot of money.
But in the end looking at the story of Arsenal from the Arsene Wenger era to the current era I think the officials still won't make any protests even though they always pour money and don't get a single trophy because in the end as long as they are in the top big 4 back as they are now they seem quite comfortable even though it cannot be denied that there should be more things to offer for now because indeed the expenses they have made are very large but the results given are still very minimal.