Country: Scotland
Games depend on the opposition as much as yourself. I'd hope that Pep in his short time in England has taught people that.what does " we need someone different sometimes" mean. go to City hire KDB for other games than go back to Özil for others?
If he hasn't then watch him and watch many a great team. They alter to suit who they play. Özil isn't ideal against every team as much as Giroud isn't ideal against every team. That's why you have a squad to rotate and change as the opponents and circumstances change.