Lance brings a lot of positives. And a lot of negatives. The questions are how they balance out, and what happens if you replace him with someone with fewer positives but with a whole lot fewer negatives.
Who knows, you might get more out of other players who were adversely affected by Lance's negatives. Sure, they should have been strong enough to have not been affected by them. But they were, IMO.
I want Lance back because I do think we will suffer, but I can see where the team may not be affected quite as adversely as one might expect to happen when replacing someone who should have been an all-star.