Constructing a seven-round mock draft takes days and collective breath is held that a big trade does not happen to shake things up. As luck, or lack thereof would have it, the Panthers -- a team widely expected to take a quarterback in the 2021 NFL Draft -- made a splash move early this week to acquire quarterback Sam Darnold as I was working on the fourth round. I jokingly tweeted that fans should expect a big trade to go down any time and 40 minutes later...