Dunno about any improvements cause I didn't red whole your post, just squad.
And I got a question how long you have English players in squad (Sturridge, Baines) and do they prove theirselfs?
PS. You looking for a next forward with these you got now? Experienced and cheap one? Go and search througt some South American leagues (Guatemala, Chile especially) and some teams got veterans aged 30 - 37 in their sides but still with rocking attributes and mostly free or under 1 million euro deal. | 
