By Andrew Holleran FOX is in need of a new lead play-by-play man for the NFL and MLB. Joe Buck is leaving the network to team up with Troy Aikman at ESPN. He will be calling Monday Night Football and working on other projects. That leaves FOX with a pretty big hole on its announcing roster. However, the network reportedly plans to “trust the process.” According to Andrew Marchand of the New York Post, the network is eyeing two in-house candidates to replace Buck. “Kevin Burkhardt (NFL) and Joe Davis (MLB) are the favorites to succeed Joe Buck as the faces of Fox,” he reports. Both Burkhardt an…