368104
He later joined the Fitzroy coaching staff and in the 1961 VFL season filled in as senior coach , due to the absence of Len Smith , steering the club to a win over Carlton .
 Fitzroy, Len Smith
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Fitzroy, Len Smith