You would be the Freeper authority on this, but I distinctly recall that Hillary, whilst working for the Watergate gang, made the argument that Richard Nixon was not entitled to the right of counsel at either hearing or an ultimate impeachment trial in the Senate.
Blago is entitled to have lawyers. His tactic is for his lawyers to take a hike. I understand that he's not calling witnesses because he missed the deadline to present his witness list. That may be just a stupid mistake, or maybe it's another tactic.
John / Billybob