Even before he joined the bar, Philip A. Miscimarra of Morgan, Lewis & Bockius LLP got a valuable lesson in the best way to approach clashes between labor and management. His mother was a member of the Pittsburgh Public School Board and his older sister was a teacher living at home when Miscimarra was in college. His sister joined a 57-day strike that kept 62,000 students out of school and threatened the high school graduation of another sibling. His sister’s fellow teachers would often drop by the house …