Who though? Who turns the players into goalscorers and creators?
Ok, creating is usually something you do collectively. You must of course have individuals to carry out the tactics, but then the tactics must match the qualities of the players. If you look at a team like Brentford, they are far from the best individual players, but they are very aware of that and adjust their tactics accordingly. They are not concerned with entertaining, but getting the most out of the players. For example, Toney would been completely useless on a team that prioritizes high ball possession, because having to deal with a defense that is mostly in balance requires completely different skills than if you play for a team that is far more direct.
So as a general rule of thumb: It is easier to exploit imbalance by giving the ball to the opponent, than to create imbalance by having the ball. Here you can work with different pressure strategies, and pressure traps, etc. I wanted to focus here on the physical and mental dimension, so that I had players who could run a lot without the ball, and endure it mentally. Defensive organization is a prerequisite for everything else.
Another rule of thumb is that most goals in soccer are scored after 5 or fewer passes. This means that when you win the ball, there must be many runs forward in the pitch, and the passes must be played forward. We have players like Iwobi, Gray, Gordon and DCL who all have usable speed.
Another rule of thumb is that most goals (80 percent and more) are scored inside the golden zone, and getting the ball there will be a priority. As we don't have the most technical players, and losing the ball forward in the pitch carries a big risk, we should be more direct. Move the team up around these areas, win duels and second balls. Here I would use Onana, a bit like Moyes used Fellaini.
Fourth, I would concentrate on set pieces. We have a reasonably physically robust team, and should be able to get even bigger returns in this phase. These are just some simple rules I would introduce immediately, and as a competent coach would do in the current situation.