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Following the internal problems with Nuno Valente and the sub par performances of Leandro , club manager Co Adriaanse turned him into a prolific left defender , in the same fashion of Portuguese internationals Miguel or Paulo Ferreira ( who played right midfielder during most of his under-21 career ) .
 Nuno Valente, Leandro, Co Adriaanse, Miguel, Paulo Ferreira
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Nuno Valente, Leandro, Co Adriaanse, Miguel, Paulo Ferreira