Even the most pie-eyed, green-blooded Celtic optimist didn't think it was going to be this good. No team since the Kings did it in 2001 has traveled the fabled Texas Triangle without at least a nick and a scratch. Maybe no team since then has really been as good as the 2007-08 Celtics. And last night was tough; make no mistake. The Mavericks, even though they haven't gotten all the attention of some of their......