Work rarely stops for an NHL executive, particularly an assistant general manager who oversees the club’s minor-league system. Craig Billington is that top-to-bottom workaholic in Colorado, overseeing all player-personnel moves with the Colorado Eagles and reporting to Avalanche GM Joe Sakic. During the NHL’s “pause” because of the coronavirus pandemic, Billington is still a busy guy — and feeling fortunate that he can devote so much time on building for the future.