I once had a partner who I will call Marvin. Marvin was a capable lawyer who had a specialty in a particular area of litigation. Marvin was personable. He could bring in lots of work in his specialty and hold onto clients. Marvin was also smart. He could look at a complex problem, boil it down to its essentials and identify the most practical solution. Marvin was particularly good at developing litigation strategies and he was also very good at negotiating with other counsel and at persuading judges to rule in his favour on all sorts of issues.