Noticed something interesting yesterday in our build up play - and don't think it was accidental.
We talked before how in our system there needs to be three at the back. This is usually split CBs and then the #6 drops between them. Napoli have a stay-at-home full back who plays RCB effectively in their build up. Or some sides simply play a back three.
Yesterday I noticed our CB's shifting side to side and one of our #8's (usually Gini, but Ox did occassionally also) was dropping in ball far side. This keeps our best aerially dominant players center in Lovren/VVD, removes the need for the #6 to be good in the air. The downside is of course that one of your #8's is ball far side and on the deepest line of your shape where they are unlikely to influence the game. Imagine next season, for example, would you rather have Ox & Keita fulfilling that role? Or a #6 comfortable dropping between them?
It won't show up on the heat maps because they were not picking up much if any touches back there as they tended to be opposite side of the ball. It was happening though. I will try to get some gif examples of it to show. It was definitely something we have been working on though as you could see one dropping back a bit once the other started moving forward. Henderson had a freer role in midfield - which I mentioned before is better for players who are weaker tactically, like Alli & Pogba, albeit he was roaming in a deeper position than a higher one on the pitch.