First half we had Callum Robinson at right back and Dianganna at left back. It was farcical at times, with all ten outfield players thirty yards from their own goal and no out ball. The Liverpool players got bored after 30 minutes of kicking it sideways between them. In a weird way it sent them a bit demented. But in the first half that actually put us under more pressure as we couldn't keep the ball for any period of time or get forwards to create a chance. Second half we came out of our shell a lot more. Tactics will change week to week, typically I'd expect us to set-up a lot more like we did under Hodgson against the mid table sides. Yes try to be compact and defensively organised but also carry a threat with the ball.
After around 15 minutes, I wasn't sure where Gibbs was, as you said, Diangana was mostly in the full back position.
I spend the next 10 minutes watching Gibbs, & then it clicked, Gibbs was man marking Sala, when Sala pulled Gibbs out of position Diangana covered the runner on the outside.
Same on the other side, Furlong was man marking Mane, Robinson covered the runner.