That's why the experienced striker option is there. The striker would not get much game time but not be mad about it because he's at the end of his career. He would just be -used as a Plan-B and he could also mentor Dongou/Adama/Sanabria. I don't think we would need to drop any of those players...
I wouldn't mind an experienced tall player who could offer us a plan-B when teams park the bus against us. I say experienced because the player won't be getting much playing time, so an older player at the end of his career probably won't mind as much
If we wanted a no. 9, we should have just kept Villa, I believe he has the ability.
Please Tata, just get us a couple of decent centre-backs who are comfortable with the ball.