I'm not at all fussed if we was to sell Stones and Lukaku. Both players make it obvious that they would welcome a move away, Stones head is turned and Lukaku only makes a difference when on form. He offers next to nothing when he is low on confidence. Kone is better at holding up the ball, Niasse supposedly has a higher work rate.
Barkley, on the other hand. Is a must keep. Incredibly talented and unorthodox. When he gets the ball on the turn you see defenders backing off because he can spin off them and run at the back line. Must keep