Who is resposible for tactics?

myself and my bro have noticed that for weeks now martin margetson, our goalkeeping coach, has been giving instructions from the sidelines to the players on the pitch and the subs coming on.
wtf is terry burton's role, and wtf is jones' role (apart from standing there looking dour).

myself and my bro have noticed that for weeks now martin margetson, our goalkeeping coach, has been giving instructions from the sidelines to the players on the pitch and the subs coming on.
wtf is terry burton's role, and wtf is jones' role (apart from standing there looking dour).

Not sure about Terry Burtons role, But DJ,s role is standing there looking dour

djs role is keeping his hands warm in his pockets

djs role is keeping his hands warm in his pockets

While looking dour

djs role is keeping his hands warm in his pockets

While looking dour

and getting a wedge of cash for it.

And playing with his balls

And playing with his balls

Tactics? What tactics?