Every Wednesday throughout the offseason, the CHGO Blackhawks crew will give their evaluations of the 2021-22 Blackhawks. We’ll be using our “feather system.” Four feathers = an A, three feathers = a B, and so on. This week, we’re reviewing the seasons of forward Kirby Dach and defenseman Erik Gustafsson. stats via Natural Stat Trick Kirby Dach Analysis Jay Zawaski:…