Record3–1
Your three weakest areas, last 4 Terran 4v4 games.
Put all production on one control group and tab through it every cycle so no barracks, factory or starport sits empty.
Every time the camera comes back to your base, spend below 400 minerals before you look away; if you can't, add production.
Build each refinery on your build's timing and put three SCVs in it the moment it finishes.