From my experience, there are three kinds of ST.
-The good ones, who like to score
-The bad, who starting playing with rates of 4-5-6. Those players are bad programs or doesn't fit in my team or they need time but I don't have the patient to wait for 1-2 seasons to perform, so I sell them asap.
-The ST, who are not bad but they don't score a lot. Those players prefer to give passes/assists to other players.
I hate when them my team rushes in a counter attack, my ST has the ball but instead of making a shot, passes to my defender who misses - wtf is doing my DC with a blue arrow, in a counter attack, in front of the oppo GK
Those ST it's better to play with another (scorer) ST as a pair. If you're playing with a formation like a 4-5-1V or a 4-1-4-1 you 'll not be effective (unless you have a hell of wingers).