At the moment, the midfield has no outlet forward. Not having an outlet forward doesn't just limit attacking options - it puts pressure on the midfield to hold on to the ball, it means we lose the ball easily when we do try to pass it forward, and it ends up leaving us open to counter-attacks, when our attack breaks down.
In fact, you could lay a lot of the blame for our awful style of football on the lack of decent forwards. We don't push midfielders forward, because we're afraid of losing the ball, whenever it's passed towards our teflon strikers. They hold on to it for ages, looking for a pass or cross that might actually stick. Even if we signed just two players this summer, and they were both decent strikers who could hold up the ball, then we'd probably have a pretty good side.