The Red Wings play the Edmonton Oilers at Little Caesars Arena on Wednesday (7 p.m. ET; FS-D, SNW, NHL.TV).
"I think this league is relentless, and if you let up for a second, you will fall behind so fast you won't know what happened to you," Blashill said. "And so you better be relentless in your approach."
The Red Wings missed the playoffs last season for the first time since 1989-90, when some of their players hadn't been born. They had 79 points, 16 behind the Toronto Maple Leafs, the second wild card in the Eastern Conference.
They had lots of injuries, subpar goaltending, a poor power play and several players who underachieved offensively. General manager Ken Holland felt if they could turn around those areas, they could compete for a playoff spot.
Holland was right.
A quarter of the way into this season, the Red Wings have been relatively healthy. Goaltender Jimmy Howard has a 2.34 goals-against average and .928 save percentage.
"When you're healthy, you feel good out there, and you're just playing," said Howard, who had a 2.10 goals-against-average and .927 save percentage, but missed 2 1/2 months with a sprained knee. "You're not worrying about anything else. You're not thinking about anything else. You're just going out there and doing your job."