If you're in this situation, you might try honing your focus - if you can zero in on the most lucrative/time segments of your consulting practice, you may be able to make this work.
This does depends greatly on your client mix and financial situation.
We'd almost done that - had a brilliant marketing plan drawn up and everything; then burnout hit myself and my business partner (hard). The coup de grace was delivered by the GFC
(Even here in Australia, small businesses were hit - and all our clients were small businesses or primary industry and simply stopped paying invoices or returning calls.)
This does depends greatly on your client mix and financial situation.