-snip-Maybe Barcelona is not only with tiki taka formation but they will change how to get great game and directly could make scoring with many touch like formation before, they want effective when counter attack and wanna make many goal each match.
I agree with you, that football or barcelona is not just about tiki-taka. Koeman should be aware of this. If in the golden era of Barcelona's tiki-taka being success, it is because coaches and players can apply it well. However, with the current squad, if it can't be forced, I think it would be better to change the game strategy. Koeman have own style to bring barcelona to their best, of course he need time, especially with current crisis in Barcelona, maybe koeman can't buy a players as he want to matching up with his strategy.