It's a good point you make about Lambert's lack of tactical changes during a match, Nuggets.
You say he gets out-thought by opposition managers and there is some truth in that. I however think it's actually a bit of arrogance from our leader. Whilst it's commendable that Paul wants us to play a certain style he needs to have a plan B for when the game isn't going our way. To just send our lads out to implement our game plan without really looking at the other team or figuring out a tactic for the best result is basically assuming that the opposing management team is going to do the same and not watch videos of us or come up with the best plan for the current opponent. Naive at best, arrogant at worst. Only a team like Barcelona of a few years ago could play matches and pretty much say 'You know how we play but you have to stop it'. We haven't got the quality in our squad to do that and need to be flexible when required.
There are two tactics that have worked against us so far this season. Doncaster put our defense under pressure and forced mistakes in dangerous areas and that led to a heavy defeat. Lincoln did the opposite and dropped off as soon as we had the ball knowing that we would make plenty of passes in our half but wouldn't really hurt them in the final third if they kept good shape. Our style of plays seems to work once we get a goal as it forces the other team to be more adventurous which opens up the space that we need but we can't break teams down that sit in. Lambert should have a plan to deal with both situations but comes up short on changing the flow of a match in real time.