Kobe

I think the reason why his touch and passes became suspect later on the season was due to fatigue (long season  + general game workrate).  His long ball passing in the U-23 tournament last summer was fantastic.  
 
Also, I think he lost a lot of confidence/care after the whole debacle with Rafa benching him in the Champ game in Japan.  

the way I see it, Hazard is close to his full potential already.  His body is already fully peaked and his physical attributes won't get better (same with Lukaku)
 
However, both KDB and Oscar still have ways to go.  I still think Oscar has the biggest potential and the longest career out of everyone (barring major injury).   
 
People have a misconception that players will automatically improve and improve as they grow older.  Some players peak early, others don't.  

Mikel might, but Rambo is staying. 
 
I'm sure if anything he will be Mourinho's ultimate utility player playing in multiple positions, etc.    

the way I see it, Hazard is close to his full potential already.  His body is already fully peaked and his physical attributes won't get better (same with Lukaku)
 
However, both KDB and Oscar still have ways to go.  I still think Oscar has the biggest potential and the longest career out of everyone (barring major injury).   
 
People have a misconception that players will automatically improve and improve as they grow older.  Some players peak early, others don't.  

Yea, it does make sense.
 
Rambo won player's player of the year.  So, would I trust the players on Chelsea's opinion or fans opinion?
 
This season, he was unanimously the poty, without question, however last season, I would say Rambo or even Cech were the real poty for Chelsea.  
 
Also, spain played 4-3-3 in the cup.