How i see this: 4 players up top are good. I'm not a great fan of Ramsey for example, but he can absolutely be world class on his day and if he stays injury free. Same goes for Ozil, he can completely disappear during the game though and his fitness level is always questionable. Martinez is a tank and would be great, while Alexis is the player i would really welcome here. Just like MikeM i think that Ozil and Ramsey seem too lightweight, that's why i'd add two great CMs to compliment them. Cazorla always seemed to me like a good offensive option from the bench, while about Coquelin i can't say much because i don't watch Arsenal too much, didn't really notice him in the games i saw though. Schneiderlin would be a really good acquisition for this idea.
This is all based on very few EPL games i saw so i might be very wrong.

Also i don't want to be an ass, but Arsenal's squad seems really mediocre to me even though they've managed to finish 3rd this season.