I used Giroud as a lone striker, poacher, scored something like 170 goals in 200 games for me. I'm currently deep into my own Arsenal save, and I feel the best way to manage them is to build a project, it will take time to win major honors, but when your team hits potential it's quite amazing.
GK - Asmir Begovic - 15 Million, Mr. Consistency. Lots of people keep Szczesny. I sold him because I don't like him in real life.
DR - Dani Carvajal/Seb Corchia - 15 Million - Both great can't go wrong with either.
DL - Daniel Alaba - 25 - 30 Million - World Class at beginning of the game, and only gets better.
DC - Per Mertesacker/Thomas Vermaelen/ Laurent Koscielny - All great. A good back up would be, Kyriakos Papdopoulos.
DMC - Victor Wanyama/Lars Bender - Both can become world class. One will cost around 12 million, the other around 20 million.
CM - Wilshere (When Healthy)/ Lars Bender (again)/ Leon Goretzka/Jordy Clasie - All can be great for a Prem club, Goretzka stands head and shoulders above them all though.
AMR - The Ox/Walcott/Halilovic - The Ox, and Walcott will be good enough for right now. Halilovic can become a beast, and can tear up the EPL with careful coaching.
AML - Erik Lamela/Antoinne Griezmann - Both can do a GREAT job for you in this position. Both cost around 20 million.
ST - Giroud/Neal Maupay/Manolo Gabbiadini/Neymar - All Giroud, Gabbiadini, and Neymar should do a great job coming in for you at the very start. Mauapy is a project player, get him tutored to have a high determination, and he will become a beast. Under me in the France national team, he had 25 goals in 27 games. He is still only 21 in my game.
I play a RB-2CB-LB-DMC-2CM-AMR-AML-ST formation, it offers better defensive safety, and good balance throughout the team to also be great going forward.