When I get less or no scoring chances nearby 20'-25' I ask the players to be creative so players change their body language. And in 0-0 halftime I tell em they are not good enough or i expect them to shom me something different in the second. You must keep them fired up. Like all tactics when AI starts to know you there will be more difficult. Better players, rotation and enallactic tactics can give you wins.
But see a 0-5 after a 1-2 defeat in the first match.