The first is criminal subculture - this tends to develop in areas where an illegitimate opportunity structure is present
There is conflict subculture - this tends to develop in areas where an illegitimate opportunity structure is absent. Delinquents form conflicting gangs out of frustration at the lack of available opportunity structures
Cloward and Ohlin's theory is good in that it shows that working class delinquency is not just concerned with material gain.
The theory also identifies and explains a number of different subcultures.
However, Cloward and Ohlin fail to realise that the different subcultures can overlap. For example gangs involved in conflict subculture often deal in drugs, and make large sums of money in the process.
These two subcultural theories can be seen as functionalist because they assume there is a consensus on social values. Members of society are socialised into measuring success purely in financial terms (you could also say subcultures are dysfunctional and they help cement social norms through a moral consensus
They also assume deviant subcultures are created as a response to working-class males being unable to succeed through legitimate means