To describe a candidate who is woefully inept:
“I most enthusiastically recommend this candidate with no qualifications whatsoever.”
To describe a candidate who had difficulty getting along with fellow workers:
“I am pleased to say that this candidate is a former colleague of mine.
To describe a candidate with lackluster credentials:
“All in all, I cannot say enough good things about this candidate or recommend him too highly.”
To describe a candidate who is not particularly industrious:
“In my opinion you will be very fortunate to get this person to work for you.”
To describe a candidate who is so unproductive that the position would be better left unfilled:
“I can assure you that no person would be better for this job.”
To describe a candidate who is not worth further consideration:
“I would urge you to waste no time in making this candidate an offer of employment.”