I think I know who Arsene tries to sign this window. It will sound ridiculous to some, but it's Cavani. With France's new law taxing income earners above 1 million euros, some players will want to leave and with PSG's rumored interest in Mata, if he signs for them he can slot into the right where Cavani played. Cavani can come to Arsenal and be the main man and make our ST position his own. It might sound utterly ridiculous right now, but after seeing what Wenger pulled off with Bale and Ozil transfer domino, I wouldn't discount it especially as Wenger has an excellent relationship with PSG's executives. He's also tried to sign Cavani before the winter before he moved to PSG when we big 40m for him (according to Geoff).