Or those aspects of the federal CIO environment that constrain the federal CIO flexibility and hinder the ability to perform effectively may be examined more closely, and specific strategies to cope with those aspects may be proposed.
It is impossible to examine the constraints that limit the flexibility of the federal CIO. 
mnli hypothesis: It is impossible to examine the constraints that limit the flexibility of the federal CIO.  premise: Or those aspects of the federal CIO environment that constrain the federal CIO flexibility and hinder the ability to perform effectively may be examined more closely, and specific strategies to cope with those aspects may be proposed.