The Carolina Panthers have officially announced quarterback Baker Mayfield as their Week 1 starter. To a lot of people, this might not seem like breaking news. However, it bears mentioning since head coach Matt Rhule entertained the competition between Mayfield and incumbent starter Sam Darnold. What does this mean for the Panthers? What happens to Sam Darnold? Why is Week 1 so important for Mayfield and the Panthers? Let’s answer these new questions following today’s development out of Charlotte, N.C. What does this mean for the Panthers? For the Panthers, the backup will likely be Sam Darnol…