Hmm, reading your post almost made me change my mind. About the quality of player is good enough or not for so called 'Chelsea quality' is hard to be measured, as it will back to personal opinion. Since Mourinho have decided to sign Cuadrado from Fiorentina, I don't think signing Radja is the most impossible thing in the world. I could see the future, lol, if some argue that, 'he is not that good, look he is only called up to Belgium NT a few times' Well, well, that's mainly because of Wilmots the genius one is in charge. Oh, and I think Radja and Mikel are a different type of player. Yes, both quite similar in tackling ability and stuff, but their style of play is different in my eyes.