[eengstrom]

Communication Skills should be evaluated as a part the total sum evaluation. When going through a stack of resumes, I look for clarity, not grammar, and if I can spot your spelling mistakes, you're in trouble. :)

Communication gaps are like any other quality/time/scope/cost factor when managing people. If the lack of language skills aren't counterbalanced by brilliance in other areas, you'll end up with a net loss in investing in the employee.

Evaluating whether the poor language skills is a sign of being lazy, hasty, arrogant or simply from another native language group, you could miss a good deal of other high-value talents.