By Scott Whittum Our USFL experts predict, pick and preview the Birmingham Stallions vs. Philadelphia Stars game with kickoff time, TV channel and spread. Another cross-divisional matchup kicks off the final day of the first half of the USFL season as the Birmingham Stallions and the Philadelphia Stars battle it out in a critical game for both teams. Related: Week 5 Picks for Every USFL Game Birmingham (4-0) stayed undefeated and maintained control of the South Division with a 16-10 win over Tampa Bay last weekend. It was more of a defensive struggle than may have been expected, but the Stalli…