1. we should try our regular shortpassing-possession-Tiki-Taka style, but combined with some other factors, like:
2. some longshots from the edge of the box, and lately we stopped attempting those shots :/ (We are afraid of losing possession, I guess, lol)
3. some crosses into the box if we have a tall striker (but not crosses ALL THE TIME, but 3-4 actions with shortpassing through the middle, then one ranged drive, then one cross etc.. we need to try more different things, not just sterile shortpassing through the middle till death)
4. whenever we have a chance, we should try to make a faster counterattack, until our opponent hasn't come back in their classic bus-formation (Xavi is lately killing all counterattacks. Whenever we have a chance to do something faster, he just takes the ball and waits until their defense is back in a bus-mode). We should try that, for example, after their corners, free kicks, after their attempts of counterattacks etc)
5. Rijkaard's trick: give them some ball and Possession every now and then force them to leave their bus-formation, and then again, when you get the ball, you need to try a faster counterattack, even if that means losing the ball and a mighty possession, who cares? We will get the ball back and they won't catch us on the counterattack because we haven't attacked them with 10 men in their half, since we gave them the possession and we defended with 5-8-10 players in our half, for example. (currently it seems that we are afraid of giving away some possession and of trying to create some counterattacks because we fear that we will be counterattacked when we lose the ball in our attempt of counterattack. So we just play slowly, and without taking those risks, we usually don't score against the bus, and yet, we always concede a Goal in some random counterattack, because, in the end, you always allow some counterattacks when you play Tiki-Taka with 10 players in their half)
6. some solo actions from Neymar, Messi, random player and a surprise shot after that is also welcomed. We don't need to make 1001 passes in each action before finally attempting a shot. (But yes, we will again lose some Possession. But who cares?)
Anyway, we should try a few different options.
With Pep, we only tried shortpassing till death and nothing more.
Tata tried some crosses, which is a step forward because he probably figured out that we are too one-dimensional with only shortpassing (and it became easy to defend against our current style) and he realized that we need to try shortpassing+something else. The problem is that our players are not suitable for some crosses (Again, we shouldn't cross all the time. But a cross every now and then could help and give us more options).
Imo, only shortpassing in Pep's style will work never again. This is not 2008' anymore. No matter how hard we run/press/play triangles, we will never be as successful with only shortpassing through the middle as in 2008.