One more thing - he could play at DMF role sometimes, if Jorgi is not available. He is not optimal there, but still a lot better than Fabregas. So, we could play Kovačić - Kante - Barkley / RLC, why not? We have EPL, CC, FAC, EL to play, there will be chances for all. We just need to offload Drinkayoko.
Barkley or RLC could also fill sometimes at "wingers" positions, being false wingers. Both have enough speed to play that and have played that in past.