then they never will
https://fivethirtyeight.com/features/wh ... t-winning/
Good article. Never happened before. I didn't realize that.
Part of it must be the talent cycle and the window of opportunity closing. And part of it must be the owners getting too impatient to let things continue. In a case like Don Shula and Dan Marino (no Super Bowl championships in 13 years), it's likely due to underlying issues left unaddressed.
For Lewis and Dalton, it's obviously a combination of the first and third factors, because Mike Brown's patience is boundless.