Improve our squad?
We currently have players like Salifou and Knight on the Bench. Are you saying players like Cahill, Arteta and Jagielka, even if they didn't make our first 11 (Which Cahill and Arteta most likely would), wouldn't improve our squad?
Lets put it another way, there isnt a player in Evertons first team squad that would start a game for us if all our squad was fit, they might have players that would improve our bench I reckon Arteta would be in with a decent chance of playing the offensive player in a 4-3-3.