Think Osman is around the squad for a while yet, Naismith can do a decent job in behind and Barkley is the starter for that role.
Gibson is made of delicate tissue paper and probably won't recover to be a top player again. That leaves Barry and McCarthy and we need depth to cover as Barry particularly looked gone in the legs a few weeks back - credit to him, he has recovered.
Martinez has already identified the area and he wants Rodwell - terrible choice IMO but for depth, so be it.
Don't need another striker if Traore stays and we sign Lukaku, especially with bloody Kone also around - we play a 1 striker system.