Basic problem is that we have a huge gap in midfield, one we can't fill at the moment. Not everybody has the instincts to pull the strings, which maybe OK if you have one or two which do, but at the moment we have nobody. Take McGinn; he provides a dynamism which we sorely needed when he arrived, but he's not a creative midfielder. Hourihane has some useful skills, but strikes me that his reactions are too slow. El Ghazi looks as though he has trickery which can get the better of defenders, but so far he hasn't shown much creativity in setting up other players. And so on.
I have hopes of Green, but he's essentially an attacker, not a creator. Maybe Albert's the best we've got but it's not enough. It'll be interesting to see how/if we improve when Jack gets back.
We are where we are. The only thing Dean can do is persevere. McGinn being out may be a blessing; he can recharge his batteries, and just maybe we will fall into another solution.