Their draft status is an annoying byproduct of a wholly satisfying development. The Nationals were very nearly a winning team. As Nationals players packed up their things Wednesday and prepared to split for the winter, General Manager Mike Rizzo mingled around the clubhouse and chatted with them one last time. He brought up 2012 spring training to Jayson Werth, and Werth replied, “Can’t wait.”

The Nationals will enter next season with enhanced expectations after their strong finish and 80-win season. The Nationals improved by 11 wins over their 2010 team, which improved by 10 wins over the 2009 debacle. That’s a 21-win improvement over two seasons.

Consecutive 10-win improvements are surprisingly rare. Here is the full list of teams since divisional play began that have improved by at least 10 wins in two consecutive seasons, with their record the following season included:

Minnesota Twins

1982: 60-102, 7th

1983: 70-92, 5th

1984: 81-81, 2nd

1985: 77-85, 4th

Florida Marlins

1998: 54-108, 5th

1999: 64-98, 5th

2000: 79-82, 3rd

2001: 76-86, 4th

Seattle Mariners

1999: 79-83, 3rd

2000: 91-71, 2nd (lost in ALCS)

2001: 116-45, 1st (lost in ALCS)

2002: 93-69, 3rd

Cleveland Indians

2003: 69-94, 4th

2004: 80-82, 3rd

2005: 93-69, 2nd

2006: 78-84, 4th

New York Mets

2004: 71-91, 4th

2005: 83-79, 3rd

2006: 97-65, 1st (lost in NLCS)

2007: 88-74, 2nd

Chicago Cubs

2006: 66-96, 6th

2007: 85-77, 1st (lost in NLDS)

2008: 97-64, 1st (lost in NLDS)

2009: 83-78, 2nd

San Diego Padres

2008: 63-99, 5th

2009: 75-87, 4th

2010: 90-72, 2nd

2011: 71-91, 5th

Washington Nationals

2009: 59-103, 5th

2010: 69-93, 5th

2011: 80-81, 3rd

2012: ???

That’s it. That’s the whole list. Only seven teams have improved by at least 10 wins in consecutive years since the implementation of divisional play in 1969, and none of those teams made the playoffs the year after, though three of them made the playoffs during their two 10-win improvement years.

(Lynne Sladky/AP)

Another surprising aspect of the research was that the idea that teams approach contention incrementally, at least with regard to major league performance, seems to be a myth. It is far more common for teams to make one big leap of something like 20 wins, often all the way from mediocrity to the playoffs, than a pair of small hops like the Nationals have taken. The most famous worst-to-first examples have been the 1990s Braves and the Rays of recent vintage, but there are several that jumped up and suddenly reached the postseason.

The problem with this is the narrow criteria. I probably could have found teams that improved by a minimum of, say, seven wins two consecutive years and found a totally different correlation.

The Nationals’ slower ascension — and we’re making a reasonably big assumption that they will contend next season — may owe to the state of their farm system. The dearth of major league-ready talent at the upper levels of their system in recent years may have forced players such as Ian Desmond, Danny Espinosa and a host of pitchers to contribute heavily in the majors a year too early. That’s not to say they haven’t acquitted themselves well, but they have done a lot of learning on the job. The payoff could come next year. The Nationals can’t wait.

“We start thinking about 2012 on the plane ride home,” Rizzo said.