These days Wenger manages to spend vast amounts of money on players that do very little to even improve the team. Have Xhaka and Mustafi improved us at all? He just spends money on players that are not suitable or not even improvements on what we have.
Next summer will be brutal when the contract rebels all walk out and Wenger will then spend the best part of the summer trying to prove everybody wrong by refusing to go into the market to replace them.