I think the massive problem is that there's no ease to any of our play, there never seems to be a simple option in space besides turning around and passing back to the centre backs. Having Gueye and Gomes as the middle 2 isn't working, especially when Gomes is consistently giving the ball away, Gueye isn't moving to pick up decent positions when we have possession and Sigurdsson is too far forward to make himself a decent option for a pass.
A 3 man midfield is absolutely necessary if we're going to improve - the problem being that we'd have to buy one in this window as the options we have aren't great. Having a more flat 3 in the middle would also help our back line from not being so bleedin vulnerable.