Revise the Following Sentences to Conform to Standard Business Communication

Revise the following sentences to conform to standard business communication principles. Add appropriate details as needed to complete the ideas.
a.
After extensive recapitulation, the committee implemented a substantial modification in the company.
b.
The researcher should endeavor to measure how much the two groups deviate from each other on indispensable characteristics.
c.
The results of Cynthia's research are indispensable to the victorious completion of the communication project.