I think the first part is a bit of an over simplification of what we are trying to do. We are defending deeper and ensuring we have a good defensive structure in front of them. On the whole this does seem to work quite well. We are in agreement we got lucky against Leicester but in the previous 2 games we performed the system very well. From a defensive standpoint, if you are well drilled it is actually very hard to break down. You reduce the number of easy goals you give away with long straight balls etc.
The flip of this, is that you have to be clinical on the counter. I think-particularly against Leicester that is the area that needs improvement. We need to pick the right pass better and be a bit more clinical. To me Calvert Lewin has to up his levels a bit on the counter. He should have had a penalty last night, but he has to take that ball across Soyuncu (this is what Vardy does) and then there is absolutely no doubt he gets the penalty. He's improved a lot at this, but it's the final step. Either way though, that is more about improving what we do now, rather than re-start it.
As for the final point, yes I agree. We can buy players who can play that system. My contention is that to buy players who can play it well (rather than cheap imitations like we've had under Martinez onwards) costs money and takes a lot of time. Due to FFP restrictions we are quite restricted in this regard. I also thinl, without getting into Europe consistently you have little chance of attracting the players who are of the right calibre to come.
I don't doubt that at some point you have to make the switch, but you can do this far too prematurely from our own experiences.
Just to add to that brilliant post mate - i think much of how we are playing is to compensate for a poor - allbeit - injury ravaged midfield. A relief for injury and more recruitment in central midfield i think will see a change in how we set up.
I must say i enjoy us playing a deep a line, we look far more solid and likely to get results, though we have an outside hope of Europe - realistically we playing for money for the summer with 2 mill per PL place, getting as high up the table as possible is critical.