By Tzvi Machlin With the firing of Matt Rhule and several top members of his staff, the Carolina Panthers have effectively abandoned the 2022 NFL season, which usually means one thing: A trading spree is coming. NFL insiders have already confirmed as much. But with the Panthers roster as it is, there aren’t many players who are likely to bring back the kind of draft pick haul that will allow the team to speed up their inevitable rebuild. However, there is at least one: All-world running back Christian McCaffrey. The Pro Bowl and All-Pro running back has been severely limited by injuries these …