By Joe MussattoStaff writerjmussatto@oklahoman.comThe Oklahoman is highlighting one Thunder head coaching candidate per day as the search for Billy Donovan’s replacement continues.Here are five things you need to know about Stephen Silas:Growing up in the gameSilas was born in Boston in 1973 when his dad, Paul Silas, was playing for the Celtics.Paul Silas played 16 years in the NBA from 1964-80.Read more on NewsOK.com