Madueke can't be used in Saka's position much. I agree. While you have a talent like Saka there is no way for that! I wonder what Arteta thinks about the situation after this signing.
He can be used on the left wing too as long as he manages to cut Martinelli. If they are paying that much for Madueke then Arteta should really be thinking of using him in the starting eleven...
I think you're wrong. I rated Madueke a bit lower than Saka. He's both footed, but much more better when he used his left foot. Having him in Arsenal's squad has the purpose to increase the club's depth.
I remind you when Saka was injury, and none in Arsenal was competent enough to play at his position. It makes Arsenal's attack lacked of consistency. So, it's good having madueke as Saka's backup.
Well it's always a good plan to have back up in whatever position you are to play so that if injury does rock the team you won't be all that affected and this is simply the right thing but as for madueke roll in the arsenal squad, I think am still optimistic if actually he can meet up to expectation because before arteta is so keen on getting him to the squad he might be seeing excess potential in for him to add value to Arsenal.