Sprint offered a joke of a price anyway.
However Clear doesn't really have any leverage. Not sure why Sprint 'has to' offer more. Dish offer isn't enough to offset the penalty to break the Sprint deal. Clear can reject it or accept it. Sprint only needs to make a move if another carrier offers more.
I agree. If Sprint has the ability to kill any offer from Dish then there is no need to raise their offer. In fact if they are willing to wait they might be better off by letting Dish move forward and then kill the deal. That will likely lower the value of Clearwire and enable Sprint to come back and make a new offer for the business at a lower price. It's hard ball and it will likely make it take a few years to close the deal but it's an option if Sprint is willing to wait. (Think of what happened to Yahoo's value when they spurned Microsoft's offer.)