Question: Which football conference in the Northeastern United States has Bobby Ritter coached in?

Context articles: Eastern Football Conference (1965–1974)
American Football Conference
Susquehanna broad projectile point
National Football Conference
Bob Ritter
1989 Northeastern United States tornado outbreak
Eastern Football Conference (1997–2000)
Atlantic Collegiate Football Conference
New England Small College Athletic Conference
December 2013 North American storm complex

The Eastern Football Conference was an NCAA intercollegiate athletic football conference that existed from 1965 to 1974.
 The league's membership was centered in the Northeastern United States.
 A separate NCAA Division II conference with the same name existed from 1997 to 2000.
The American Football Conference (AFC) is one of the two conferences of the National Football League (NFL), the highest professional level of American football in the United States.
 This conference and its counterpart, the National Football Conference (NFC), currently contain 16 teams each, making up the 32 teams of the NFL.
 Both conferences were created as part of the 1970 merger with the rival American Football League (AFL), with all ten of the former AFL teams and three NFL teams forming the AFC, and the remaining thirteen NFL clubs forming the NFC.
 A series of league expansions and division realignments have occurred since the merger, thus making the current total 16 clubs per each conference.
Susquehanna broad projectile points are stone projectile points manufactured by Native Americans what is now the northeastern United States, generally in the time interval of 1200–700 BC.
 They are probably atlatl dart points, but some are large enough to have been spear points.
 They derive their name from the specimens throughout the Susquehanna River Valley in the northeastern United States, particularly Pennsylvania and New York.
The National Football Conference (NFC) is one of the two conferences of the National Football League (NFL), the highest professional level of American football in the United States.
 This conference and its counterpart, the American Football Conference (AFC), currently contain 16 teams each, making up the 32 teams of the NFL.
 Both conferences were created as part of the 1970 merger with the rival American Football League (AFL), with all ten of the former AFL teams and three NFL teams forming the AFC while the remaining thirteen NFL clubs formed the NFC.
 A series of league expansions and division realignments have occurred since the merger, thus making the current total 16 clubs per conference.
Bobby "Bob" Ritter (born March 24, 1960) is an American football coach.
 He is current head football coach at Middlebury College.
 He took over in 2001 after the retirement of Mickey Heinecken.
 Through the 2015 season, Ritter has compiled a 75–45 record and won two New England Small College Athletic Conference (NESCAC) championships, in 2007 and 2013.
The 1989 Northeastern United States tornado outbreak was a series of tornadoes which caused more than $130 million (1989 USD) in damage across the Northeastern United States on July 10, 1989.
 The storm system affected five states with severe weather, including hail up to 2.5 in across, thunderstorm winds up to 90 mph , and 17 tornadoes.
 Several towns in New York and Connecticut were particularly hard-hit.
 Several homes were leveled in Schoharie, New York and extensive damage occurred in Bantam, Connecticut.
 A large section of Hamden, Connecticut, including an industrial park and hundreds of homes, was destroyed; and in some places buildings were flattened to the ground.
The Eastern Football Conference (EFC) was an NCAA Division II intercollegiate athletic football conference that existed from 1997 to 2000 and was composed of member schools from the Northeastern United States.
 During its entire existence, its membership was geographically divided into two separate divisions: the Atlantic Division and the Bay State/Central Division (its name was changed after the 1998 season).
 A conference championship game between the winners of the two divisions was held annually.
 Former members are currently scattered between the Colonial Athletic Association (Division I FCS) and the Northeast-10 Conference (Division II), the latter of which was founded in 2001.
The Atlantic Collegiate Football Conference was a short-lived Division III football conference composed of member schools located in the Northeastern United States.
 The league existed from 1988 to 1991.
The New England Small College Athletic Conference (NESCAC) is a collegiate athletic conference comprising sports teams from eleven schools, which are ten small liberal arts colleges and one medium-sized research university.
 The schools are all private, located in the Northeastern United States, and are often associated with the Little Ivies.
 The conference name is also commonly used to refer to those eleven schools as a group.
 The eleven institutions are Amherst College, Bates College, Bowdoin College, Colby College, Connecticut College, Hamilton College, Middlebury College, Tufts University, Trinity College, Wesleyan University, and Williams College.
The December 2013 North American storm complex was a significant storm complex that had all sorts of severe weather, including a winter storm, a crippling ice storm and a tornado outbreak that impacted the central and eastern portions of Canada, parts of the Central Great Plains, the Southern United States, and the northeastern United States from December 20 to 23, 2013.
 Formed in the South Central United States, the storm headed across the Great Plains towards Canada into Atlantic Canada and northeastern United States where the storm dissipated on December 23, 2013.
 The storm produced freezing rain and snow to the affected areas which caused massive damage to electric power transmission and trees.
 The storm resulted in 27 deaths, loss of power to over a million of residents and over $200 million in damages.
 The storm produced similar conditions to the ice storm of 1998 which affected similar areas.