i'd suggest a squad along the lines of:
 
gk: foster, alnwick, amos
rb: vidal, richards
lb: gibbs, mattock, taylor
cb: addison, shawcross, dawson, onouha
lm: cairney, johnson, mattock, 
rm: bentley, walcott, 
dm: rodwell, muamba, hyam
cm: huddlestone, o hara, 
cam: hunt,wilshere, lallana
st: wickham, bent, defoe, crouch, welbeck
 
btw i've tried to avoid picking players you've already got and anyone who you might not want to count due to them being dual nationalists are in italics.