Journalist Sam Dean has now revealed how the Arsenal staff feel about their own current squad. Arsenal spent big in the recent summer transfer window, making major additions to their first team squad, with Declan Rice, Kai Havertz, Jurrien Timber, and David Raya all arriving at the Emirates Stadium. However, Mikel Arteta and sporting director Edu will be well aware that squad building is an ever-evolving and ongoing process. According to transfer journalist Fabrizio Romano, the north London club are keen to bring in a left-back and striker in the current January transfer window. These addition…