Marin is a winger, he didn't do well behind the striker. KDB is a central midfielder, that's where he excelled last season, his performances went up to a different level.
To put the price into perspective - Sao Paulo have rejected bids over 30 million for Lucas. Most Brazilian experts rate Oscar higher than Lucas, they say he is a much more complete player. Oscar is arguably the second best talent in Brazil after Neymar. Hazard + Oscar + Marin = 64 million Carroll + Downing + Henderson = 75 million
The translation was wrong, he said they value him more than 20 million euros. 25 million euros should be enough. Good value in my opinion, you are signing one of the elite talents in Brazil and he can play in so many positions.
"We have received by email on Friday a proposal by Chelsea Oscar, the value is not pleased and we refuse. The proposal was lower than we expected, for less than 20 million we do not sell the Oscar," said Luigi.
I think this will happen, eventually, on the basis that the player wants Chelsea and Porto need to sell. Hazard, Marin, potentially Hulk and Oscar - would be our best ever transfer window!
I don't agree with comparing Moutinho to Oscar. Oscar is very versatile - he has the pace, dribbling skill and agility to beat players in wide positions. He has played on the right in the past and been effective.