Falcao has proven at Monaco he's not nowhere near the form he was at Atletico and I doubt Lewandowski is interested in a move to anywhere else but Bayern.
Eto'o is not cutting it and Torres and Ba whilst decent our not enough up front. I think Eto'o might go in the summer and so might Ba/Torres, if lets say Torres stays, Lukaku comes back and we bring in another striker I think it might work out well, but not someone high-priced because that would put way too much pressure on playing him all the time.
Jose didn't refuse to play Mata, I was butthurt for a long time that he didn't play him but for the last month Mata has started most of the games and played well, especially alongside Hazard, as mentioned times before Jose wanted Mata to change his game and he's done that now, he's found the balance between rotating Oscar and Mata and Willian can also play in that central role if needed. De Bruyne got his chance last night and didn't take it so I'm guessing he'll be leaving in January.