Is this actually possible to do just with training?

[ibangali]

yes, its possible. Striker have following key skills:

Positioning + Heading

Passing + Dribbling + Shooting + Finishing

Strength + Speed + Creativity

Rest are non key skills. If you keep train him with "Fast counter attack + Use your head + Slalom dribble" all the time then you will giving him those key skill points. Read following guide, it'll help you more to understand.

https://forum.topeleven.com/tutorial...g-planner.html

But for a plain striker (without other positions, like amc/l/r) I usually don't care much his passing skills, passing skill make him assister; for a plain stricker I prefer:
"Use your head + shooting tech + sprint". Although every manager have their own styles. Have fun