You can call me a true believer after yesterday's performance. I don't put much stock in substitute/league cup performances, but in his first league start in a tough game, he was excellent and best of all, Saka's injury is a blessing in disguise for him as RW is a much better role for him to be developed in as it carries less risk and amplifies his strengths.
From what I've seen, he's more of a forward than a midfielder, he's not really a build up player, but he's an attacker who will beat players and get shots and crosses in. That's why I think there was some hesitancy playing him in midfield, but I don't think Arteta will have any issues ramping up his starts as a forward.