I agree with kingjulian here.
Partly cos it's logical, & partly cos I think it fits with what FSG want.
They see sturridge as a top class striker, so don't see the need for a replacement, I don't believe the injury record effects their thinking.
I do believe they look at salary expenditure per position, in which they will see, as far as they are concerned, adequate expenditure.
As a fan, with a brain & the ability to predict a less than stellar return on games per salary quota on our only top striker I can see the issue. However I believe that view does not extend to our owners, who see things in a much more black & white, simplistic, out look than my own.