Yes good spot - it does seem to be the major tactical change Sami has opted upon from the Gus/Oscar's version of the 4-3-3/4-5-1 system we have become so used to.
It basically means our fullbacks have to have the skills of wingers while our actual wingers need to have the positional nous to exploit their more narrow positions inside. And also the midfield 3 have to be conscious of not overcomitting themselves rashly as they may have to cover for the advanced full back. The virtue I guess is that it gets the two forward wingers closer to our one striker, the problem is you need the right players to be comfortable with those positions.
We need Ward back ASAP as I think he can play this (sort of) wing back role quite well. Jury is out on whether Chicksen good enough. It should suit Calde/Bruno but the worry is their defensive discipline - Crawley got too much space out wide last night.
Then there is the question of whether it will suit the likes of Lualua and Buckley to play more narrower. Lualua had a rotten first half but came on strong in the second, maybe that's a sign of a learning curve in action. For me though, I'd still prefer to see him starting games out wide drawing fouls from fullbacks from the off.
The new shape possibly explains why Kemy rarely wandered far from the centre circle last night - these may be the defensive sacrifices of the new shape.
I saw it the same way. No change. I would say the basic shape was 4-3-3. We did not seem to string five across the middle which is a waste. One full back advances only when the ball is on the opposite flank. More like 4-4-2 to me. Chicksen had a lot of space against Crawley.
Playing this way with a right footed defensive midfielder there is a hole (sacrifice for attack) on the left hand side which mean we need a good left back like Stephen Ward. Kemy Agustien played a better role in the centre (ostensibly box2box) than when pushed forward against Partick when he looked out of the game. Exactly how Leicester played last season and in the home match when Konchesky pushed forward we suckered them on their left hand side.
I like the the role the not fully fit Lualua played against Crawley. Lingard role but Lualua has a greater range of skills. Not just the acceleration I like about him, but his change of direction.
I think we need a stopper center half in the old fashioned Steve Foster style.