The Knicks’ coaching search won’t officially start until they get binding word that they will not be among the teams invited to Central Florida. Such confirmation, of course, could come as soon as Thursday, when the league’s Board of Governors is scheduled to vote on Silver’s preferred proposal. The expectation in league coaching circles is that the Knicks will move with reasonable swiftness from there, since Tom Thibodeau is regarded as such an overwhelming favorite to replace the interim coach Mike Miller. Leon Rose, the Knicks’ new team president, has a close relationship with Thibodeau from their lengthy stints as agent and client with Creative Artists Agency. Word is that the Knicks, for good measure, have already begun background work on their top target.