Celtics explain why Joe Mazzulla sometimes enjoys blowing leads

BOSTON — The Celtics looked like they were going to cruise to a blowout victory over the Pacers on Tuesday, building up a 20-point lead as part of a historic scoring first half. They poured in 81 points in the first half as the buckets came easy and the Pacers couldn’t generate enough stops. But the Pacers stormed back to wipe away their deficit and even take the lead in the third quarter. That’s part of the modern NBA where big leads aren’t safe because teams can get hot from 3, among other areas. And in an interesting twist, C’s coach Joe Mazzulla revealed recently that he actually enjoys it when his teams blows leads — just like in the…