Exactly, we have depth and creativity issues.
The goal is to ensure that our first and best 11 are able to play together for most if not all season. The signings we are making/linked to address this.
I really don't see the issue here except "CHEALSEA's BINS/ BITCHES". And if you don't live on social media (free advice, don't), it reeeeally shouldn't be a problem. It's not your money, and no one has claimed it's hampering us from making other signings. All reports point to independent efforts for Eze and Gyokeres.
Regarding the player, Arteta apparently worked excellently with Sterling, turning him into one of the most productive wingers in the league in his prime. If he thinks he can do similar with NM, he's entitled to go for it. It's his club to manage. It's an expensive gamble, and if it fails, it's his head.
Question for you @TambourineMan , how would you evaluate this signing. Objectively speaking. Come end of the season?