By Tzvi Machlin With injuries to both Baker Mayfield and Sam Darnold, the Carolina Panthers are without their top two quarterbacks for the immediate future. So for the first game with Steve Wilks as their interim head coach, there will be a new quarterback under center. According to ESPN NFL insider Adam Schefter, backup quarterback PJ Walker is expected to get the start for the Panthers. Walker is 2-0 as an NFL starter but has only ever come in as a backup for injured or struggling starters. Walker played quarterback at Temple in college when Matt Rhule was their head coach. But he didn’t get…