Ok, let me do a quick hindsight analysis here. R ell me the 11 you'd have played. And I'll use preexisting facts to show you how it would have been the wrong 11. It is extremely easy to do. And that's what most fans do here.
It all game theory gone amok. They pick a conclusion, I.E. Pellars sucks, then work backwards finding justifications for an opinion already held.
To answer your questions though.
Delph out wide? Yes, specifically to slow down Mahrez. Which he failed at. But he outside of Dihno was the best choice for that role of policing Mahrez
Yaya, Ferny, Oti and MD against quick players? I'll answer this in part. Simply put we only have 2 CBs available, so it really doesn't matter who we are playing, those 2 would start.
That is a function of our injury situation. Sure Sagna is a cute shout. But he really is a RB who can manage at CB, and not some great difference maker.
Yaya and Ferny at CM? Why not, we won our first 5 games doing this. Add a hardworking Delph on the left to help neutralize Mahrez, and tactically, its a good plan. Execution on the other hand was poor. Delph was poor checking Mahrez and rightly got pulled for it. MD was poor on dead balls and we conceded 2 from that. But I doubt Sagna would have stopped Huth on either goal.
Team defending , you don't let someone get goal side of you from that distance.
How we let that goal in still staggers me.
The first four games of the season are a distant memory.
Yaya and Ferny don't work against most sides least of all Leicester who have no fear ( mind you no side does anymore ) going to our place in the form they are in.
When we win midfield we rarely lose the game.
It hear and now and Yaya is a spent force , I would rather we bring in youth if we have to we have little to lose but it was nailed on we were cactus with that line up on Saturday and we will again this Sunday if we do likewise with Fernando replacing Silva.
We are better off sticking ten behind the ball as we did against Sunderland for much of the game rather than go with a midfield of Yaya and Ferny against Spurs.
Poor management and a lack of a plan which even if there were rudiments of one the players either don't know it or refuse to implement.
Silva was a lame duck after 30 minutes and probably shouldn't have played ( we would have done as well with 10 men on the pitch closing down space which again it seems we are incapable of because we lack a work ethic and some of our players lack speed of mind and foot ) so take him off and bring on one of the youngsters or pack the midfield FFS.