Colleges and universities pride themselves on producing erudite citizens. Nevertheless, by nearly available benchmark, they are failing in this regard, although they don’t seem to realize it. “While M. B. A. students’ quantitative skills are prized by employers, their writing and presentation skills have been a perennial complaint,” Diana Middleton wrote in The Wall Street Journal on March 3, 2011. “Employers and writing coaches say business-school graduates tend to ramble, use pretentious vocabulary or pen too-casual emails.” “Meanwhile, the Graduate Management Admission Council, which administers the Graduate Management Admission Test, says average essay scores on the GMAT fell to 4.4...