Sentence:  Further research in the meaning of crises as experienced by the consumers of traditional social casework services - including attempts to develop a typology of family structures , crisis problems , reaction mechanisms , and differential treatment approaches - and the establishment of new experimental programs are imperative social needs which should <WSD>command</WSD> the best efforts of caseworkers in collaboration with community planners . 
Meaning of the word marked with <WSD> tags:  demand as one's due