i dont know if cossa is a bust or not, but goalies are weird and come from lots of places. i dont agree with drafting one in round one because of that. just a personal philosophy.
cossa hasnt done anything so far and has been outplayed by postava, that's why postava is starting. in fact, cossa has faded badly down the stretch for two years in a row. cossa still has potential, that's why they should trade him this offseason before the shine completely wears off.