i agree Selby about 4 at the back which he switched to after the the disaster of a start.
I think MH bought his centre halves in determine to play the 3 at the back ( Zouma/Shawx /BMI) plus wing backs which works when all settled in and know the system.
On saturday in the first 30 mins Allen and Fletcher were trying to close down centrally on Bournemouths back line inside their half leaving a massive gap behind. Why ECM and jesse could not do this job allowing Allen and Fletch to sit a bit deeper and make the numbers up in midfield were we were over run. its like when Arnie and Bojan started they just watched when the team had to defend.Jesse was the most creative like Shaq who took two years to learn to track back and close down.