I have three tactics, I keep training at tactics. All of the three tactics use varied systems, different instructions and formations. I even have a 4-2-4 direct attacking tactic on my Chelsea save, sorta like Chelsea played under Ancelotti. If I mix instructions, I don't loose much fluidity. Yes it's hard for player to suddenly play higher tempo than they normally do, but I have them training higher tempo in the other slot. IRL, most top managers try to train 2 tactics to every team. (I'm looking at Mourinho).AayushCFC you seem to have suggested you use more and more tweaks of strategy's/width/defensive line/positions/player instructions as the thread has gone on, how does your team cope with that? Because in FM terms this probably equals allot of different systems. This is not a criticism of you or your systems by the way, far from it because I agree with your tweaks it is just that with the limitations that match preparation gives you I can only see your side hugely lacking in learning these systems and this is half the reason I tend to play FMC allot more now, I really wish the full fat version would remove tactic familiarity too, it should not be so dependant. In real life if your side changed from Attacking to Defensive in one game for the last 20 minutes the side could adjust to that accordingly, in FM this would certainly be not the case.
I follow a chelsea fan blog wagnh.com, there's a tactical anaylsis after some matches, especially if the opposition played differently, I also keep checking into tactics the likes of Mourinho deploy IRL. I know ME doesn't work this way but I keep trying different tactics, keep changing systems.
My 3 tactics
Control - Fluid
Attacking - Balanced
Counter - Rigid
Different set of instructions. I almost certainly develop a new tactic before a cup final, a tactic purely based to counter that specific opposition.