People are underrating Sanogo on here, he isn't good enough for us but could make it a hoofball club. Alongside Morata he was top scorer at under23s European Championships and he scored 10 goals in 13 starts as a teenager in ligue 2. Since then he's hardly had any games but scored 3 goals in 4 starts in the championship for Charlton. Scored that 4 goals against Benfica in pre-season. Scored against Dortmund and looked lively against Bayern and Liverpool.
Sanogo isn't good enough technically for a big club that plays possession football but could be a double digits striker with regular starts and the right sought of service, ie whipping in loads of crosses.
He's been really unlucky too. If Giroud got injured in his first season he could of get 10 or so games to get some experience. All of the loan clubs have preferred to develop their own players rather than our loanee.