Dan Bylsma was promoted from the AHL when Michel Therrien was fired in 2009.
The Penguins, at the time, were 10th place in the Eastern Conference with stars like Jordan Staal, Sidney Crosby and Evgeni Malkin on the team. It was inexcusable. It seemed like these players were not being utilized efficiently a year after going to the finals.
Bylsma came in and established a puck-possession style of play, and the Penguins succeeded immediately. They finished fourth in the Eastern Conference and ended up winning the Stanley Cup.
Bylsma's style of puck possession hockey is still being used in Pittsburgh, and they've been highly successful using it. He has a hockey IQ, having written a book called "So Your Son Wants to Play in the NHL."
He has the highest winning percentage amongst Penguins coaches and has become a fan favorite because of his positive demeanor and engaging personality.